Synchronize w/ gta5

[gottfriedleibniz]

Some of the return types are still a bit weird, e.g., GET_NEAREST_PLAYER_... and the PARTICIPANT_ID ones.

[Halen84]

Finally getting back to this, and here I fixed all of the errors that I could find, and renamed a few natives:
natives.zip

[gottfriedleibniz]

Committed your changes and whatever else I had stashed. Although, I think it would be nice to split these changes into two separate commits:

1. Mistakes in my change-set (mostly done automatically with an additional pass to manually salvage other commands that did not exactly match).
2. Natives without gta_hash deemed worthy of synchronization (something I did not focus on).

Should make the commit history a little nicer and a tad easier to review. I'll likely squash everything after (Done).