Update script: propagate custom DLL name

LibGit2Sharp must know the custom DLL name to be able to load it.

Author: ethomson

UpdateLibgit2ToSha.ps1

@@ -82,19 +82,21 @@ Push-Location $libgit2Directory
 
     Pop-Location
 
-    sc -Encoding ASCII (Join-Path $projectDirectory "nuget.package\libgit2\libgit2_hash.txt") $sha
-    
     if (![string]::IsNullOrEmpty($libgit2Name)) {
         $binaryFilename = $libgit2Name
     } else {
         $binaryFilename = "git2-" + $sha.Substring(0,7)
     }
 
+    sc -Encoding ASCII (Join-Path $projectDirectory "nuget.package\libgit2\libgit2_hash.txt") $sha
+    sc -Encoding ASCII (Join-Path $projectDirectory "nuget.package\libgit2\libgit2_filename.txt") $binaryFilename
+
     $buildProperties = @"
 <?xml version="1.0" encoding="utf-8"?>
 <Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
     <ItemGroup>
         <EmbeddedResource Include="`$(MSBuildThisFileDirectory)\..\libgit2\libgit2_hash.txt" />
+        <EmbeddedResource Include="`$(MSBuildThisFileDirectory)\..\libgit2\libgit2_filename.txt" />
     </ItemGroup>
     <ItemGroup>
         <None Condition="Exists('`$(MSBuildThisFileDirectory)\..\libgit2\windows\amd64\$binaryFilename.dll')" Include="`$(MSBuildThisFileDirectory)\..\libgit2\windows\amd64\$binaryFilename.dll">