[Quest API] Add CampAllBots() to Perl/Lua. (#2732)

# Perl
- Add `$client->CampAllBots()`.
- Add `$client->CampAllBots(class_id)`.

# Lua
- Add `client:CampAllBots()`.
- Add `client:CampAllBots(class_id)`.

# Notes
- Adds constants for `NO_CLASS` which is class `0` and uses `RACE_DOUG_0` for any spots that use race ID `0`.
- Cleans up magic number usage of race/class of `0`.

zone/lua_mob.cpp

@@ -1571,7 +1571,7 @@ void Lua_Mob::SendIllusionPacket(luabind::adl::object illusion) {
 		return;
 	}
 
-	int race = 0;
+	int race = RACE_DOUG_0;
 	int gender = 255;
 	int texture = 255;
 	int helmtexture = 255;