Added .gitignore generation for Android.
Added iOS main.m generator.
Added iOS InfoPlist.strings generator.
Added iOS Prefix.pch generator.
Added iOS Info.plist generator.
Added iOS contents.xcworkspacedata generator.
Added iOS AppDelegate.h/m generator.
Added iOS Images.xcassets generator.
Fixed wrong file name for AppDelegate.m.
Added iOS project.pbxproj generator(WIP).
Added iOS .gitignore generation.