make all input timer code consistent/less confusing (and maybe reduce a tiny tiny bit of lag this way)

git-svn-id: svn://svn.code.sf.net/p/vpinball/code/trunk@713 14438d79-0ffd-4333-8ae7-ea2bdd901387
Correct omitted code for defining gamepad buttons for Mech Tilt and Debug Balls, as well as rename Override PBW Layout to Override Default Layout

git-svn-id: svn://svn.code.sf.net/p/vpinball/code/trunk@714 14438d79-0ffd-4333-8ae7-ea2bdd901387
increase precision of timer

..paranoia, but maybe helps in some situations to reduce micro-stutter

git-svn-id: svn://svn.code.sf.net/p/vpinball/code/trunk@715 14438d79-0ffd-4333-8ae7-ea2bdd901387
some more cleanups

git-svn-id: svn://svn.code.sf.net/p/vpinball/code/trunk@716 14438d79-0ffd-4333-8ae7-ea2bdd901387