Also fixed a few dungeon script handlers
Close #404
* Monsters should drop items in world fix the typo introduced in https://github.com/Grasscutters/Grasscutter/pull/366/commits/f1934c3a47d6c7ef888581bcf7f361d063154215 * Determine whether in dungeon scene
Only a few are supported right now You will need certain script files in ./resources/Scripts
(without luas)