Potential speculative fixes for Peer 2 Peer connection issues

Slightly lowered default value of net_maxfragments (28000=>24576)

Fixed re-selecting ragdoll with Faceposer corrupting flex values

Fixed crashes when using physics gun or the gravity gun on Linux 32bit clients

Fixed workshop support when Steam throws errors during subscription info gathering

Prevent corruption of the net channel due to fragment counts being out of safe bounds

Make concommand.Add errors non halting

Fixed ammo HUD positioning due to SWEP:CustomAmmoDisplay

Added support for "SecondaryClip" in SWEP:CustomAmmoDisplay table.