Fixed NPC and Vehicle Editors. Now all working

- Now stalker, uriah , magnuson, fisherman, and barnacle can be replaced.

The fixes have arrived):

- Added a checkbox to "TR Base" to enable swapping in NPC models.
- Fixed the annoying "Tried to use a NULL entity!" bug that appeared frequently.
- Added a "show SWEP" button to the NPC weapon swap menu. Now you can more conveniently select the desired weapons.

Not a huge update, though, there is an important addition:

-Added NPC model replacement (in TEST mode use at your own risk). Download the necessary models for NPCs and replace at your discretion. In the future I will finalize.
- Minor corrections. I also added a button for alternate weapon replacement in the game (now it is fashionable to replace weapons immediately when they appear).

Changes:
- Ability to reset the config in use (so you don't have to clear the config yourself)
- Added alternate weapon swapping (Finally fucking, now weapons are swapped not during pickup, but when spawned and dropped from NPCs).
- Minor bug fixes.
- Maybe something else.
Also in the future I will add Props replacement. About NPC models there are serious problems: most of the models have their own animations, and because of this it is quite difficult to change NPC models.

- Fixes

- Now you can select the desired preset for an individual map. To do this, open the presets menu and select the desired parameters for yourself. If you don't need to, you can disable the preset loader when you start maps in Utilities. This was originally turned off in order not to break the map and the game. Be careful: SAVE the unsaved preset separately, otherwise it will be lost!
- Fixes: HL2EP1 and 2 are now available as replacements.
- Fixes: You can now choose NPCs weapons based on ARCCW and TFA base.
- NPCs in HL2, NPC get scripts from maps. For example replaced Alyx will follow you.
- And more goodies)