Implement features from X-Ray extensions

[Xottab-DUTY]

Before engine sources became available, modders used X-Ray extensions to get additional features.
They still can be used by old mods, so we want to port them to support those mods.

Some features are already implemented in CoC (which we already support), OGSR, maybe other projects.

Official repository: https://github.com/KD87/xray-extensions
External documentation: https://xray-engine.org/index.php?title=X-Ray_extensions