Add ability to lock vehicle doors in battlefield

Inconsiderate people driving a helpful vehicle to the wrong place is  not a new thing in BF games

Here is the BFF episode and here is the personal experience from BF Hardline where I edited the BFF audio in there to show how similar it is to the parody episode.

But as much as these players are annoying, I can imagine that locked doors would lead to even worse cases of inconsiderate or even malicious actions.