client/physics.cpp: Rename constants to match new style
Fix typo in fly_jump_dec
Update referenced names for client/physics
client/physics: Update namespace and class name
client/physics: Remove redundant nl:: usage
client/physics: Rename member functions
Fixed a few warnings.

Signed-off-by: retep998 <retep998@verizon.net>
client/player: Update to new style
clien/player.cpp: Use new conditional body style
Updated VS projects for player

Signed-off-by: retep998 <retep998@verizon.net>