Refactor nuspec and targets for swiftshader support

Previously we used a different ItemGroup for every resources/binaries/pak files, we need to add swiftshader support which would have been a 4th target,
all files are always copied in the case of CefSharp, so just switching to one. The ItemGroup was selectively being created on the presence of the
x86 or x64 folder, have created a text file to do the same trick, it's a quick solution, not the cleanest, though can be revisited later without
having to change anything downstream, so going with that for now.

Author: amaitland

NuGet/cef-binary-x64.txt

@@ -0,0 +1 @@
+This packages contains the x64 libs and resources

NuGet/cef-binary-x86.txt

@@ -0,0 +1 @@
+This packages contains the x86 libs and resources

NuGet/cef.redist.nuspec

@@ -15,17 +15,18 @@
     <copyright>Copyright © 2008-2015</copyright>
   </metadata>
   <files>
-    <file src="..\cef_binary_3.y.z_$CPlatform$\$Configuration$\*.dll" target="CEF\$Platform$" exclude="..\cef_binary_3.y.z_$CPlatform$\$Configuration$\d3dcompiler_43.dll" />
-    <!-- Since CEF 3.2357 the files natives_blob.bin and snapshot_blob.bin need to be distributed.
+    <file src="..\cef_binary_3.y.z_$CPlatform$\$Configuration$\*.dll" target="CEF\" exclude="..\cef_binary_3.y.z_$CPlatform$\$Configuration$\d3dcompiler_43.dll" />
+    <file src="..\cef_binary_3.y.z_$CPlatform$\$Configuration$\swiftshader\*.dll" target="CEF\swiftshader" />
+	<!-- Since CEF 3.2357 the files natives_blob.bin and snapshot_blob.bin need to be distributed.
          https://groups.google.com/a/chromium.org/forum/#!topic/chromium-packagers/75J9Y1vIc_E
          http://www.magpcss.org/ceforum/viewtopic.php?f=6&t=12580
      -->
-    <file src="..\cef_binary_3.y.z_$CPlatform$\$Configuration$\swiftshader\*.dll" target="CEF\$Platform$\swiftshader" />
-    <file src="..\cef_binary_3.y.z_$CPlatform$\$Configuration$\*.bin" target="CEF\$Platform$" />
+    <file src="..\cef_binary_3.y.z_$CPlatform$\$Configuration$\*.bin" target="CEF\" />
     <file src="..\cef_binary_3.y.z_$CPlatform$\Resources\*.pak" target="CEF\"/>
-	<file src="..\cef_binary_3.y.z_$CPlatform$\Resources\icudtl.dat" target="CEF\"/>
+	<file src="..\cef_binary_3.y.z_$CPlatform$\Resources\*.dat" target="CEF\"/>
     <file src="..\cef_binary_3.y.z_$CPlatform$\Resources\locales\*.pak" target="CEF\locales"/>
 
     <file src="cef.redist.targets" target="build\cef.redist.$Platform$$DotConfiguration$.targets" />
+	<file src="cef-binary-$Platform$.txt" target="CEF\" />
   </files>
 </package>

NuGet/cef.redist.targets

@@ -12,16 +12,14 @@
 	Example if this is a x64 package, their will be a x64 folder in the CEF
     directory, if that's the case this package contains the x64 files, so we'll
 	define those properties.
+	
+	Using wildcard matching as per https://stackoverflow.com/a/17252671
     -->
-  <ItemGroup Condition="Exists('$(MSBuildThisFileDirectory)..\CEF\x86')">
-    <CefBinaries32 Include="$(MSBuildThisFileDirectory)..\CEF\x86\*.*" />
-    <CefPakFiles32 Include="$(MSBuildThisFileDirectory)..\CEF\*.*" />
-    <CefLocales32 Include="$(MSBuildThisFileDirectory)..\CEF\locales\*.*" />
+  <ItemGroup Condition="Exists('$(MSBuildThisFileDirectory)..\CEF\cef-binary-x86.txt')">
+    <CefRedist32 Include="$(MSBuildThisFileDirectory)..\CEF\**\*.*" />
   </ItemGroup>
 
-  <ItemGroup Condition="Exists('$(MSBuildThisFileDirectory)..\CEF\x64')">
-    <CefBinaries64 Include="$(MSBuildThisFileDirectory)..\CEF\x64\*.*" />
-    <CefPakFiles64 Include="$(MSBuildThisFileDirectory)..\CEF\*.*" />
-    <CefLocales64 Include="$(MSBuildThisFileDirectory)..\CEF\locales\*.*" />
+  <ItemGroup Condition="Exists('$(MSBuildThisFileDirectory)..\CEF\cef-binary-x64.txt')">
+    <CefRedist64 Include="$(MSBuildThisFileDirectory)..\CEF\**\*.*" />
   </ItemGroup>
 </Project>