Adding CMake_Linux.sh

CMake_Linux.sh

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+SOURCE=$(cd ${0%/*}; pwd)
+cmake -E make_directory ../AtomicGameEngine-Linux && cmake -E chdir ../AtomicGameEngine-Linux cmake "$SOURCE"
+echo "makefile written to ../AtomicGameEngine-Linux"