Build 10618
GIT-
General
Implement `includeoptional` in Mapster32's CON parsing
SVN handles and Git names are merged into one person.
Implement `includeoptional` in Mapster32's CON parsing
Add "includeoptional" CON token, that doesn't error out if the included file is absent.
Add missing GAMEVAR_RAWQ16PTR case in VM_GAMEVAR_OPERATOR
EVENT_PRE/POSTWEAPONSHOOT: Set ud.return[0]/userdef.return 1 to the number of the current shot we're processing in a burst
Give EVENT_POSTWEAPONSHOOT the return value of A_Shoot.
Port EVENT_PREWEAPONSHOOT and EVENT_POSTWEAPONSHOOT from NetDuke32.
* Setting RETURN to non-zero in EVENT_PREWEAPONSHOOT cancels the shot.
Add warning when `terminate` found outside state or event
Add prependstate and appendstate