[Server] - Donated vehicle modifications

[CXdur]

There's still a lot of work putting it into the script, somehow Robin left out the part where I had to spend 6 hours sorting it by vehicle model ID and splitting them up into 4 arrays to avoid any iterations. Personally I would like to add more of these things but please be a bit more specific as to what. I also have exams coming up so I try to spend my time on more important changes.

However if you guys can bring up some screenshots of what you'd like to add please do. I would like to add more items to the donation shop and I have been considering a customizable text label attachment for donators.

EDIT: To avoid iterations every vehicle model needs to be in the array meaning that if we'd like to add something like this we'd need to add it for as many vehicles as possible because we would have to fill out the array with unused models too.