TexturePacker fix and improvements

- fixed parseMoaiFormat, wrong uv map
- added loadMoaiFormat
- added coronaFormat
TextureAtlas support for rotated regions

- support for TextureAtlas rotated regions
- support for TexturePacker parsing of rotated regions (moai and
sparrow format, missing for corona format)
- [break] XmlNode:getAttributeN renamed to XmlNode:getAttributeNumber
Samples use atlas with rotated regions

- planet cute resources moved to a dedicate folder
- added atlas with rotated regions
- added moai version of atlas descriptors
- updated samples