Add -BuildArches to specify what platforms to build for (ie "x86 arm64") (#100)

Removed much of the platform specific code redundancy

Author: mitchcapper

NuGet/chromiumembeddedframework.runtime.nuspec renamed to NuGet/chromiumembeddedframework.runtime.nuspec.template

@@ -25,13 +25,7 @@
 	<!-- Architecture-specific files folder hierarchy lost (native subfolders)  -->
     <!-- https://github.com/NuGet/Home/issues/7698#issuecomment-455368655 -->
     <!-- We have to copy swiftshader and locales via manually -->
-    <file src="..\cef_binary_3.y.z_windows32\Resources\locales\*.pak" target="CEF\win-x86\locales"/>
-    <file src="..\cef_binary_3.y.z_windows32\$Configuration$\swiftshader\*.dll" target="CEF\win-x86\swiftshader" />
-	<file src="..\cef_binary_3.y.z_windows64\Resources\locales\*.pak" target="CEF\win-x64\locales"/>
-    <file src="..\cef_binary_3.y.z_windows64\$Configuration$\swiftshader\*.dll" target="CEF\win-x64\swiftshader" />
-    <file src="..\cef_binary_3.y.z_windowsarm64\Resources\locales\*.pak" target="CEF\win-arm64\locales"/>
-    <file src="..\cef_binary_3.y.z_windowsarm64\$Configuration$\swiftshader\*.dll" target="CEF\win-arm64\swiftshader" />
-    <file src="..\cef_binary_3.y.z_windows32\LICENSE.txt" target="LICENSE.txt" />
+    META_REPLACE_DATA
     <file src="chromiumembeddedframework.runtime.json" target="runtime.json" />
 	<file src="chromiumembeddedframework.runtime.props" target="buildTransitive\" />
     <file src="cef128x128.png" target="images\" />

NuGet/chromiumembeddedframework.runtime.win.nuspec

@@ -29,7 +29,7 @@
     <file src="..\cef_binary_3.y.z_$CPlatform$\Resources\*.dat" target="runtimes\win-$Platform$\native\"/>
     <file src="..\cef_binary_3.y.z_$CPlatform$\Readme.txt" target="\"/>
 
-    <file src="..\cef_binary_3.y.z_windows32\LICENSE.txt" target="LICENSE.txt" />
+    <file src="..\cef_binary_3.y.z_$CPlatform$\LICENSE.txt" target="LICENSE.txt" />
     <file src="cef128x128.png" target="images\" />
   </files>
 </package>