To do:
- Add a starting pen for an 8-player game.
- Add more track sections.
- Add weighting & more criteria for selection of track sections (to produce that escalating difficulty we want).
- Potentially add the possibility for narrower track sections to spawn side by side.

Modified the pit prefab (sorry Claire), the surrounding blocks clashed with neighbouring pits/walls/water/etc.
Starting the game will now take you to the 4-player alpha racetrack rather than Colour Collide.
Camera now scrolls along the racetrack level at a rate of 1 block per turn. Currently nothing happens to people who fall behind it, except that you can't see them.
Pets will no longer paint blocks in their colour. (I had to modify the ColorCollide.cs script for this, as I could not figure out how to turn a script into a .asset object as was done for ColorCollide.asset.)

Added colours for each animal (Tested with selection black out) - need Joshua's help for server push