ios and mac projects unified in one simple xcode project

Not finished yet:
 - iOS only includes Test Cpp (Simple Game not working yet on iOS)

It is easier to maintain and add more targets, files, etc.
Merge branch 'develop' into ios_mac_one_project
SimpleGame and HelloCpp works as expected

their Info.plist was broken
Adds JS tests for iOS
Obfuscated Test JS added on iOS and Mac

new version of game.js. I guess it was autogenerated
Merge pull request #3060 from ricardoquesada/ios_mac_one_project

issue #2372: ios and mac projects unified in one simple xcode project