Add setup commands for Mac

GenerateProjectFiles.command

@@ -0,0 +1,12 @@
+#!/bin/sh
+# Copyright (c) 2012-2021 Wojciech Figat. All rights reserved.
+
+set -e
+
+echo Generating Flax Engine project files...
+
+# Change the path to the script root
+cd "`dirname "$0"`"
+
+# Run Flax.Build to generate project files (also pass the arguments)
+bash ./Development/Scripts/Mac/CallBuildTool.sh --genproject "$@"