Mobile (touch) extension(s).

[yuri-kiss]

At this point we are just piling up the mobile extensions, and I think its getting excessive...

1. Mobile events #1617
2. New extension: Touches #1608
3. New extension: Multi Touch #1432

If possible we should try to get the authors of these pull requests to collaborate on a big mobile touch extension.
This would not be classified as a utilities extension as it serves one purpose and that is mobile events / touching.

[SharkPool-SP]

@Sesena0u0 @DNin01 @Skyhigh173