Natla's Mines inventory stuffs in OpenLara

[Leo-89]

Hello there! :P Replaying the PSX version of TRI I spotted that when you finish "Sanctuary of the Scion" level and you start "Natla's mines" you still have all previous pickups in your inventory, with the only exception of weapons, while in OpenLara you start that level without any item (medipacks, ammo). This is quite annoying if one wants to manage his resources in order to use it from a certain point of the game.