Add support for Windows Arm64 (#3)

Author: dellis1972

build/BuildWindowsTask.cs

@@ -9,16 +9,23 @@ public sealed class BuildWindowsTask : FrostingTask<BuildContext>
 
     public override void Run(BuildContext context)
     {
-        var buildWorkingDir = "crunch_build/";
+        BuildForArchitecture(context, "x64", "windows-x64");
+        BuildForArchitecture(context, "ARM64", "windows-arm64");
+    }
+
+    private void BuildForArchitecture(BuildContext context, string cmakeArch, string rid, string cmakeOptions = "")
+    {
+        var buildWorkingDir = $"crunch_build_{rid}";
         Directory.CreateDirectory(buildWorkingDir);
         // Path relative to the buildWorkingDir
         var cmakeListsPath = System.IO.Path.Combine("..", "crunch", "CMakeLists.txt");
-        context.StartProcess("cmake", new ProcessSettings { WorkingDirectory = buildWorkingDir, Arguments = $"-DBUILD_CRUNCH=ON -DBUILD_SHARED_LIBCRN=OFF -DBUILD_SHARED_LIBS=OFF -DBUILD_EXAMPLES=OFF {cmakeListsPath}" });
+        context.StartProcess("cmake", new ProcessSettings { WorkingDirectory = buildWorkingDir, Arguments = $"{cmakeOptions} -DBUILD_CRUNCH=ON -DBUILD_SHARED_LIBCRN=OFF -DBUILD_SHARED_LIBS=OFF -DBUILD_EXAMPLES=OFF {cmakeListsPath}" });
         context.ReplaceTextInFiles("crunch_build/_crunch/crunch.vcxproj", "MultiThreadedDLL", "MultiThreaded");
         context.ReplaceTextInFiles("crunch_build/crnlib/crn-obj.vcxproj",  "MultiThreadedDLL", "MultiThreaded");
         context.ReplaceTextInFiles("crunch_build/crnlib/crn.vcxproj", "MultiThreadedDLL", "MultiThreaded");
         context.StartProcess("cmake", new ProcessSettings { WorkingDirectory = buildWorkingDir, Arguments = "--build . --config release" });
+        Directory.CreateDirectory($"{context.ArtifactsDir}/{rid}");
         var files = Directory.GetFiles(System.IO.Path.Combine (buildWorkingDir, "Release"), "crunch.exe", SearchOption.TopDirectoryOnly);
-        context.CopyFile(files[0], $"{context.ArtifactsDir}/crunch.exe");
+        context.CopyFile(files[0], $"{context.ArtifactsDir}/{rid}/crunch.exe");
     }
 }