Remove most of the unnecessary NW networking + replace the remaining with NW2

[Astralcircle]

Most of these values ​​are already networked, and those that do require network transmission now use NW2
The Think hook has also been replaced with a timer

Please don't forget to update the workshop addon if you merge this

[robotboy655]

Have you actually tested this?
I don't think func_door* variants network their locked state, only the prop_ ones do.
And I am dubious about the HasRadar function working.

There's no need to swap NWVars to NW2Vars.

[Astralcircle]

I've been using this on my server for about two weeks now and haven't had any issues. I haven't tested it with func_door, but it should probably work?

Radar checking on jalopy works like this:
When a radar is installed on jalopy, a vgui_screen entity is created and parented to them. So checking whether vgui_screen is parented to jalopy should be the most reliable method

Also, why not replace NW1 with NW2? We only need these values ​​in PVS