- added win x64 for steam

mk/steamworks_sdk/sdk/tools/ContentBuilder/content/win_x64/.gitignore

@@ -0,0 +1,4 @@
+# Ignore everything in this directory
+*
+# Except this file
+!.gitignore

mk/steamworks_sdk/sdk/tools/ContentBuilder/scripts/megaglest_build_windows_578870.vdf

@@ -11,5 +11,6 @@
 	"depots"
 	{
 		"578872" "win_x86_build_578872.vdf"
+		"578874" "win_x64_build_578874.vdf"
 	}
 }

mk/steamworks_sdk/sdk/tools/ContentBuilder/scripts/win_x64_build_578874.vdf

@@ -0,0 +1,25 @@
+"DepotBuildConfig"
+{
+	// Set your assigned depot ID here
+	"DepotID" "578874"
+	"ContentRoot"	"C:\Code\steamworks_sdk\sdk\tools\ContentBuilder\content\win_x64\"
+
+	// include all files recursivley
+    "FileMapping"
+    {
+  	// This can be a full path, or a path relative to ContentRoot
+    "LocalPath" "*"
+
+    // This is a path relative to the install folder of your game
+    "DepotPath" "."
+
+    // If LocalPath contains wildcards, setting this means that all
+    // matching files within subdirectories of LocalPath will also
+    // be included.
+    "recursive" "1"
+    }
+
+	// but exclude all symbol files  
+	// This can be a full path, or a path relative to ContentRoot
+    "FileExclusion" "*.pdb"
+}