Pexeso game update
- Changed shader on gameTile prefab to Transparent/Diffuse because of transparency.
- Added directional light to all scenes.
- Added bool variable "enableSounds" to main game script (can be changed in object inspector of object "Main") to enable/disable sounds and music.
- Added missing comments to methods and attributes
Merge branch 'Pexeso' into develop - source code comments added.