Using BitmapData text on hardware render mode

Like we said on https://github.com/HaxePunk/HaxePunk/pull/183 I replaced Text to use BitmapData on hardware.

Now it's possible to rotate it and scale it (including screen scale).

The only thing different on hardware is that by default it seems smoothed, but in flash it's not.

I'll look to see if this fix the open text issues.