Citadel API clean up.

Citadel API clean up.
Moved public function prototypes for room operations into ctdl_module.h and
renamed them to match the documented naming convention.

create_room -> CtdlCreateRoom
getroom -> CtdlGetRoom
putroom -> CtdlPutRoom
lgetroom -> CtdlGetRoomLock
lputroom -> CtdlPutRoomLock
getfloor -> CtdlGetFloor
putfloor -> CtdlPutFloor
do_i_have_permission_to_delete_this_room -> CtdlDoIHavePermissionToDeleteThisRoom
ForEachRoom -> CtdlForEachRoom
delete_room -> CtdlDeleteRoom
usergoto -> CtdlUserGoto
cgetfloor -> CtdlGetCachedFloor
schedule_room_for_deletion -> CtdlScheduleRoomForDeletion
is_noneditable -> CtdlIsNonEditable

This is probably not all of the functions from room_ops.c that should be
exposed but it is all the ones that any current module uses.

No module should now need to include "room_ops.h"