Update libgit2 natives to 1.0.155

Use the new nuget package layout for .NET Core compatibility with
native binaries.

Author: Edward Thomson

LibGit2Sharp/LibGit2Sharp.csproj

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <Import Project="..\packages\LibGit2Sharp.NativeBinaries.1.0.137\build\LibGit2Sharp.NativeBinaries.props" Condition="Exists('..\packages\LibGit2Sharp.NativeBinaries.1.0.137\build\LibGit2Sharp.NativeBinaries.props')" />
+  <Import Project="..\packages\LibGit2Sharp.NativeBinaries.1.0.155\build\LibGit2Sharp.NativeBinaries.props" Condition="Exists('..\packages\LibGit2Sharp.NativeBinaries.1.0.155\build\LibGit2Sharp.NativeBinaries.props')" />
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
@@ -383,7 +383,7 @@
     <PropertyGroup>
       <ErrorText>This project references NuGet package(s) that are missing on this computer. Use NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
     </PropertyGroup>
-    <Error Condition="!Exists('..\packages\LibGit2Sharp.NativeBinaries.1.0.137\build\LibGit2Sharp.NativeBinaries.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\LibGit2Sharp.NativeBinaries.1.0.137\build\LibGit2Sharp.NativeBinaries.props'))" />
+    <Error Condition="!Exists('..\packages\LibGit2Sharp.NativeBinaries.1.0.155\build\LibGit2Sharp.NativeBinaries.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\LibGit2Sharp.NativeBinaries.1.0.155\build\LibGit2Sharp.NativeBinaries.props'))" />
   </Target>
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it.
        Other similar extension points exist, see Microsoft.Common.targets.
@@ -393,4 +393,4 @@
   </Target>
   -->
   <ItemGroup />
-</Project>
+</Project>

LibGit2Sharp/packages.config

@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="LibGit2Sharp.NativeBinaries" version="1.0.137" targetFramework="net4" allowedVersions="[1.0.137]" />
+  <package id="LibGit2Sharp.NativeBinaries" version="1.0.155" targetFramework="net4" allowedVersions="[1.0.155]" />
 </packages>