Don't include the lazy precompiled.h everywhere, only what's
required for the compilation unit.
platform.h needs to be included instead to provide all essential
defines and types.
All includes use the relative path to the neo or the game
specific root.
Move all idlib related includes from idlib/Lib.h to precompiled.h.
precompiled.h still exists for the MFC stuff in tools/.
Add some missing header guards.
suggest explicit braces to avoid ambiguous ‘else’
suggest parentheses around ‘&&’ within ‘||’
suggest parentheses around ‘-’ in operand of ‘&’
suggest parentheses around arithmetic in operand of ‘|’
equality comparison with extraneous parentheses
Functional change:
Proper HELLTIME check in Playerview due to missing parentheses.
variable set but not used
Removes some CollisionModel code under _DEBUG which was probably a
leftover, since it was completely useless (its done later anyways).
