[android] add AOT profile for .NET MAUI

[jonathanpeppers]

Context: dotnet/android@3e699d6
Context: https://github.com/jonathanpeppers/android-profiled-aot

Add a maui.aotprofile, and bundle with .NET MAUI. Recording custom
profiles is not supported by dotnet/runtime, but it can be done
following the instructions in the jonathanpeppers/android-profiled-aot
repo.

To ship an AOT Profile for MAUI:

1. Default $(AndroidUseDefaultAotProfile) to false, so the plain
   Android profile is not used. The default Android profile only
   contains methods in AndroidX, Mono.Android.dll, Java.Interop.dll, etc.
2. Default @(AndroidAotProfile) to maui.aotprofile, unless
   $(MauiUseDefaultAotProfile) is false.

Profile Contents

Modules:
    EA3844FC-D728-4D48-9598-1C93505E4623 System.Private.CoreLib
    2CC403AF-60DC-48A9-9B69-FF254277AEA0 Mono.Android
    92FF7068-2EA9-4681-B340-44E91077417A Java.Interop
    3E65EB5C-02E9-4DE5-AC19-B2F2BAF2857B Microsoft.Maui.Essentials
    21CF52B7-0256-4838-848C-DA026B2F1789 Xamarin.AndroidX.Core
    35358E14-E381-4472-858E-ABFD81B3517C Microsoft.Maui
    5A334DAA-789C-421E-9B20-F1B66879BF49 Microsoft.Extensions.Hosting
    C3C04DA6-9F0C-48FD-83EA-115CB6076248 Microsoft.Extensions.DependencyInjection
    1CC454CF-BE07-4D95-B1E7-3EFC458F943C Microsoft.Extensions.DependencyInjection.Abstractions
    229E3EBA-F00D-40DF-BEB8-4C16CB84DE98 Microsoft.Extensions.Configuration.Abstractions
    CCAA9BA7-D5D3-47EC-8FBB-DED7D6FC2143 Microsoft.Extensions.Configuration
    981BD5D2-69A5-4C0B-A258-50BB28365D5B Microsoft.Extensions.Primitives
    C674A867-6352-482C-9A7A-0272480711AC Microsoft.Extensions.Hosting.Abstractions
    1D537869-4CC1-4E6D-B0BF-6ABEA40ADF8B Microsoft.Extensions.Configuration.FileExtensions
    3C68719B-EA9F-48EC-86D7-2EE85CDA2272 Microsoft.Extensions.FileProviders.Physical
    0D1C05F9-FFB8-4A75-A24E-6C17893B53F7 System.Linq
    DCE2ADDD-008E-43B4-B1D6-3CCA222678FF Microsoft.Extensions.Logging
    C9E0059C-3CE2-4B91-BE1D-808EF93495C3 Microsoft.Extensions.Options
    8A3A36B0-0D51-4CF6-A5F0-2E1EF0A01648 Microsoft.Extensions.Logging.Abstractions
    DDC70C0B-3BAA-4844-8401-65EA77FBDDDC Microsoft.Extensions.Logging.Configuration
    28AB2955-BA00-4EAC-90B6-4E31F4826D75 Microsoft.Extensions.Options.ConfigurationExtensions
    BC607A7F-080C-424F-8A37-011B30F6DE55 Microsoft.Extensions.Logging.Console
    1BDE760B-6269-47BC-9BF5-6B44DC9CC032 Microsoft.Extensions.Logging.Debug
    9D7AA4B2-70B7-4329-A099-BE5F3B8FE0A4 Microsoft.Extensions.Logging.EventSource
    DF5F5616-FA06-46C0-8025-6DA20BB34CEC Microsoft.Maui.Controls.Compatibility
    63B89754-AAED-4092-9FDE-E50EB969DE1B MauiApp1
    1F1E6C61-F9BC-488D-9EC4-335D0D5A0800 Microsoft.Maui.Graphics
    38104510-26A0-4B40-8542-80153806B860 System.Diagnostics.DiagnosticSource
    F7E05AD1-4195-4539-B3AD-487030D94748 System.Collections.Concurrent
    2795C489-C1E7-40BC-ACF2-B84C11F67B47 Microsoft.Extensions.Configuration.Binder
    F26C0583-5BFE-4B78-BC65-84547BAA9F75 System.Runtime.InteropServices.RuntimeInformation
    404F6169-7356-4D95-BD9A-3A5C7D88BD6E System.Console
    CD148B87-3553-48A2-8853-CEC72437F2A2 Microsoft.Maui.Controls
    99F9B89D-EF4E-4F6B-B785-56AFD6E37113 Microsoft.Maui.Controls.Xaml
    1B55562C-5DD7-4779-8473-8B4558C8D065 System.ComponentModel.TypeConverter
    43402C13-3212-4B9C-8A1C-0BA8C6AC6F29 System.ObjectModel
    8766384A-BB06-42DA-810C-B5B2B0D7C971 System.Private.Xml
    82E0E2F3-002E-4780-BEC2-E230299A5ED2 System.Private.Uri
    7CEE6098-BE9F-4043-B35A-B8B0684EF0CB Xamarin.AndroidX.AppCompat
    20D1FBB8-829A-4618-8E82-8047C8827EA8 Xamarin.AndroidX.Fragment
    CC363D7A-9CDB-4999-9E10-279412B14A1B Xamarin.AndroidX.Activity
    008C0F24-5014-4D41-AAB9-DDFCEA59E171 Xamarin.Google.Android.Material
Summary:
    Modules:         42
    Types:        1,234
    Methods:      5,030

Results

All tests:

1. Were running on a Google Pixel 5, and
2. Enabled two architectures, arm64 and x86, and
3. JIT time was average of 10 runs with -c Release, no AOT
4. AOT time was average of 10 runs with -c Release -p:RunAOTCompilation=true, with theActivity: Displayed time
5. Profiled AOT time was average of 10 runs with -c Release -p:RunAOTCompilation=true -p:AndroidEnableProfiledAot=true with
   the Activity: Displayed time.

	AndroidApp1	MauiApp1
JIT startup time (s)	00:00.4387	00:01.4205
AOT startup time (vs. JIT)	00:00.3317 ( 76%)	00:00.7285 ( 51%)
Profiled AOT startup time (vs. JIT)	00:00.3093 ( 71%)	00:00.7098 ( 50%)
JIT .apk size (B)	9,155,954	17,435,225
AOT .apk size (vs. JIT)	12,755,672 (139%)	44,751,651 (257%)
Profiled AOT .apk size (vs. JIT)	9,777,880 (107%)	23,210,787 (133%)

PR Checklist

• Targets the correct branch
• Tests are passing (or failures are unrelated)
• Targets a single property for a single control (or intertwined few properties)
• Adds the property to the appropriate interface
• Avoids any changes not essential to the handler property
• Adds the mapping to the PropertyMapper in the handler
• Adds the mapping method to the Android, iOS, and Standard aspects of the handler
• Implements the actual property updates (usually in extension methods in the Platform section of Core)
• Tags ported renderer methods with [PortHandler]
• Adds an example of the property to the sample project (MainPage)
• Adds the property to the stub class
• Implements basic property tests in DeviceTests

Does this PR touch anything that might affect accessibility?

No

[jonathanpeppers]

Hmm, there is no Android NDK on CI here:

 error XA5104: Could not locate the Android NDK. Please make sure the Android NDK is installed in the Android SDK Manager, or if using a custom NDK path, please ensure the $(AndroidNdkDirectory) MSBuild property is set to the custom path.

Need to look into this.

[jonathanpeppers]

I didn't add something to CI for this, because we'd need to download/install the Android NDK.

So I manually tested:

.\bin\dotnet\dotnet.exe build .\src\Controls\samples\Controls.Sample.Droid\Maui.Controls.Sample.Droid-net6.csproj -t:Run -c Release -p:AndroidEnableProfiledAot=true -p:RunAOTCompilation=true -bl -p:UseWorkload=true

I see in the .binlog:

AndroidAotProfile
    C:\Users\myuser\.nuget\packages\microsoft.maui.controls.build.tasks\6.0.100-dev\build\maui.aotprofile

The .apk comes out correct:

> ls .\src\Controls\samples\Controls.Sample.Droid\bin\Release\net6.0-android\com.microsoft.maui-Signed.apk
Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
-a----         9/16/2021   2:41 PM       26440532 com.microsoft.maui-Signed.apk