Add minetest.get_objects_in_area (#10668)

src/script/lua_api/l_env.h

@@ -114,6 +114,9 @@ private:
 
 	// get_objects_inside_radius(pos, radius)
 	static int l_get_objects_inside_radius(lua_State *L);
+	
+	// get_objects_in_area(pos, minp, maxp)
+	static int l_get_objects_in_area(lua_State *L);
 
 	// set_timeofday(val)
 	// val = 0...1