[Quest API] Add EVENT_CONSIDER_CORPSE to Perl and Lua. (#1530)

- Exports $corpse_entity_id in Perl.
- Exports e.corpse_entity_id in Lua.

Allows you to perform events on corpse consider for server operators.

zone/event_codes.h

@@ -90,6 +90,7 @@ typedef enum {
 	EVENT_BOT_COMMAND,
 	EVENT_WARP,
 	EVENT_TEST_BUFF,
+	EVENT_CONSIDER_CORPSE,
 	_LargestEventID
 } QuestEventID;