5.3 PTR Changes

- PvP Mode changes expertise cap to 3.0.
- PvP Mode changes hit cap to 3.0.
- Broke hit caps into yellow and white penalty (using the white hit cap
should be the sum of yellow and the penalty, aka 26.5).
- Created a toggle for the spell haste buff. This actually increases
the value of RPPM trinkets.
- Created a box for the GCD gap in combat calculations.

NOTE: There might be a lot of redundancies in the stat cap checks, but
I'd rather have done them thoroughly than guess if they were enough.