CATERPILLAR 994K LOADER [OPERATOR EDITION]

CHANGES from original:
-added TerraFarm capability (lower, flatten, smooth)
-optimized bucket collisions for TerraFarm
-added material pushing capability to bucket
-added functional passenger (buddy) seat
-added on screen visual displays in cab
-implemented more realistic mass/weight values
-minor changes to engine & transmission
-changed horn beep & reverse alarm sounds
-enhanced engine exhaust visual effect