feat(redm/script): Add fxmanifest metadata for overriding train track and trolley cable files

[Sage-of-Mirrors]

Goal of this PR

Allow a resource developer to replace the default traintracks.xml and trolleyCableTracks.xml files, thus allowing for RedM servers to have proper custom train tracks. And trolley cables, if so desired.

How is this PR achieving the goal

The fxmanifest metadata statements replace_traintrack_file <path> and replace_trolley_cable_file <path> have been added. When present, they store their paths to global variables in a patch, located at gta-core-rdr3/src/PatchTrainTrackFileOverride.cpp. The patch intercepts any calls to LoadTrackXML(), and if either of the override paths are valid, it will pass them into the track loading native rather than the default filepaths that were passed in.

This PR applies to the following area(s)

RedM, Server, ScRT: Lua

Successfully tested on

Game builds: b1311

Platforms: Windows

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

resolves #2424

[Sage-of-Mirrors]

This resource can be used on a server to test overriding traintracks.xml: tracktest.zip. It adds rough track nodes corresponding to the Great Plains and Mexico from RDR1. A resource that allows the player to spawn a train and manipulate junctions is required to see more than the trace() statements in the log.

[Sage-of-Mirrors]

Closing because I fucked up the git history.