Bring back random mine mobs (#2205)

* chomp mod spawner

* mob spawner

* mine mob spawner

* Update vorestation.dme

* Update caves.dm

code/modules/random_map/automata/caves.dm

@@ -52,6 +52,8 @@
 		if(!T.ignore_cavegen)
 			if(map[current_cell] == FLOOR_CHAR)
 				T.make_floor()
+				if(prob(1)) // 1 in 100 chance //CHOMP Add
+					new /obj/structure/mob_spawner/scanner/mining_animals(T) //CHOMP Add
 			else
 				T.make_wall()
 
@@ -62,4 +64,4 @@
 				T.make_ore(1)
 		get_additional_spawns(map[current_cell],T,get_spawn_dir(x, y))
 	//VOREStation Edit End
-	return T
+	return T