feat(gamestate/server): train sync node getters

[Ehbw]

Goal of this PR

Correct CTrainGameStateDataNode for >b2372 and implement several server getter natives for trains

How is this PR achieving the goal

By finishing CTrainGameStateDataNode and correcting the order for >b2372 Originally PR'd alongside server-setter trains (#2322). And implementing getter natives to allow server scripts to take advantage of this with the following natives:

GET_TRAIN_STATE
IS_TRAIN_CABOOSE
DOES_TRAIN_STOP_AT_STATIONS
GET_TRAIN_CRUISE_SPEED
GET_TRAIN_TRACK_INDEX
GET_TRAIN_FORWARD_CARRIAGE
GET_TRAIN_BACKWARD_CARRIAGE
GET_TRAIN_DIRECTION

This PR applies to the following area(s)

FiveM, Server, Natives

Successfully tested on

Game builds: ..

Platforms: Windows

Provided is a resource created to test these new server natives to ensure they work as intended train-servers-node.zip

Checklist

• Code compiles and has been tested successfully.
• Code explains itself well and/or is documented.
• My commit message explains what the changes do and what they are for.
• No extra compilation warnings are added by these changes.

Fixes issues