P_PlayerWeaponPanelOrAmmoBurst will go through all of the
player's weapon rings and either drop the weapon panel itself
(with no ammo attached, and no ammo taken away!) OR if the
player has ammo but no weapon, it drops the ammo instead
(and you lose it).
Currently the main benefit of these changes is that a number of non-Object-related hazards/deaths no long rely on dummy MT_NULL objects or other hacks to tell the game how you were hurt/killed, yay
git-svn-id: https://code.orospakr.ca/svn/srb2/trunk@9039 6de4a73c-47e2-0310-b8c1-93d6ecd3f8cd
