Add Wasmtime Windows ARM64 (AArch64) binary. (#327)

Wasmtime recently completed Windows ARM64 support with bytecodealliance/wasmtime#9266 and added release artifacts with bytecodealliance/wasmtime#9283.

Fixes #298

Co-authored-by: James Sturtevant <[email protected]>

Author: kpreisser

src/Wasmtime.csproj

@@ -144,6 +144,15 @@ The .NET embedding of Wasmtime enables .NET code to instantiate WebAssembly modu
       <FileExtension>zip</FileExtension>
       <LibraryFilename>wasmtime.dll</LibraryFilename>
     </Wasmtime>
+
+    <Wasmtime Include="windows-aarch64">
+      <Copy Condition="$([MSBuild]::IsOsPlatform('Windows')) And '$([System.Runtime.InteropServices.RuntimeInformation]::OSArchitecture)'=='Arm64'">true</Copy>
+      <OS>windows</OS>
+      <Arch>aarch64</Arch>
+      <RID>win-arm64</RID>
+      <FileExtension>zip</FileExtension>
+      <LibraryFilename>wasmtime.dll</LibraryFilename>
+    </Wasmtime>
   </ItemGroup>
 
   <!-- This target downloads wasmtime and runs before any inner TFM-specific builds -->