[TIMOB-12431]iOS: Adding launch-url option to cli

JS Part CR to be done by @cb1kenobi

__Testing Instruction__

** Create a new app and while running the app from cli include the following flag
`--launch-url "http://www.appcelerator.com/" `
example :
`ti build -p ios -D test -F iphone  -Y iphone --launch-url "http://www.google.com/" -T simulator --log-level trace`

__TEST 1__
** Launch app with given url
** First launch will launch the provided url in mobileSafari.app
** Re-launching(while the app is background) will not open mobileSafarii, instead will take you to your app.

__TEST 2__
** Kill the app from background and restart the app.
** First launch will launch the provided url in mobileSafari.

__TEST 3__
** Open up the build xcode project and try running it in Simulator.
** The app will launch normally and will not launch mobileSafari.app