Basic Prefabs and Code Cleanup

- The tank1 & tank2 prefabs can now be used for a basic for any unit.
Add/remove the right sized range ring prefabs for the range stat and
every other stat/sprite should be changed to match their unit stuff, but
other than that it should be pretty easy to make new units

-Cleaned up a lot of code that either had a lot of comment garbage or
had variables that were no longer needed after the work we did in lab.