Move to a postbuild.ps1 script and Set the working dir at runtime as output dir (#91)

Minecraft.Client/postbuild.ps1

@@ -0,0 +1,41 @@
+param(
+    [string]$OutDir,
+    [string]$ProjectDir
+)
+
+Write-Host "Post-build script started. Output Directory: $OutDir, Project Directory: $ProjectDir"
+
+$directories = @(
+    "music",
+    "Windows64\GameHDD",
+    "Common\Media",
+    "Common\res",
+    "Common\Trial",
+    "Common\Tutorial",
+    "Windows64Media"
+)
+
+foreach ($dir in $directories) {
+    New-Item -ItemType Directory -Path (Join-Path $OutDir $dir) -Force | Out-Null
+}
+
+$copies = @(
+    @{ Source = "music";           Dest = "music" },
+    @{ Source = "Windows64\GameHDD"; Dest = "Windows64\GameHDD" },
+    @{ Source = "Common\Media";    Dest = "Common\Media" },
+    @{ Source = "Common\res";      Dest = "Common\res" },
+    @{ Source = "Common\Trial";    Dest = "Common\Trial" },
+    @{ Source = "Common\Tutorial"; Dest = "Common\Tutorial" },
+    @{ Source = "DurangoMedia";    Dest = "Windows64Media" },
+    @{ Source = "Windows64Media";  Dest = "Windows64Media" },
+    @{ Source = "Durango\Sound";  Dest = "Windows64Media\Sound" }
+)
+
+foreach ($copy in $copies) {
+    $src = Join-Path $ProjectDir $copy.Source
+    $dst = Join-Path $OutDir $copy.Dest
+
+    if (Test-Path $src) {
+		xcopy /q /y /i /s /e "$src" "$dst" 2>$null
+    }
+}