Hi!

Currently our game have there platform-specific projects: iOS, Android and Amazon.
Projects on each platform have different lists of ANEs inside.
So it would be nice to have some platform argument in apm init to keep descriptor clean and do not download redundant ANEs on install stage.
For example, now we have about 130 strings in descriptor for iOS, 550+ for Android and 450+ for Amazon.
And it feels dirty when iOS project has much more Android strings the iOS ones.