…rough X=0 or Z=0.

Don't truncate goal angle when using "Match angle".
Don't truncate goal angle after calculating target speed.
Use nearest effective angle as a goal rather than truncated angle.

Style edits:
Unify indentation and spaces.
Make variables local.
Move function variable declarations to function body.
Remove some unnecessary modulos, just do one at the end.

…ated

version of mario's yaw. Truncation only happens in the trig lookup tables
which only seem to be applied to mario's intended Dyaw.

Also made some more vars local.

- Atan button to enable Atan straining (only for Match angle)
- Textbox for selecting arctan section end frame mod 100
- Two QF modifier buttons to specify QF on landing

Currently works with Dyaw and QFs but does not work with .99 yet.