Adding new types (Ray, Region3, Region3int16, Faces, Axes, Content) for convenience and type completeness

[maneetoo]

Good Afternoon, @ericplane

I'm genuinely glad this library has emerged as a replacement for the now rather outdated ProfileStore. It's the only DataStore library that's actually a pleasure to work with.

Why?

I'm currently developing my own game, and the only shortcoming I've found in the library is the absence of several fairly important types — Ray, Region3, Region3int16, Faces, Axes, and Content. So I decided to implement them myself to help make the library a bit better and more complete; these types will be useful to developers whose games rely on them frequently.

What has been changed:

• types/index.d.ts — Added the new types to the ScribeModule interface (alongside the existing readonly Vector3/CFrame/etc. lines) and added the same six types to the DatatypeValues interface.
• src/Internal/datatypes.luau — Added the new types (Ray, Region3, Region3int16, Faces, Axes, Content) to codecs for replication and profile saving.
• src/init.luau — Added six new functions to Scribe for the new types (Ray, Region3, Region3int16, Faces, Axes, Content) and updated the shared doc comment above function Scribe.Vector3 as well as the @prop Datatypes table doc comment.

What was intentionally left unchanged?

Documentation — I chose not to touch it, since the current build (v2.5.0) doesn't yet include these changes; adding types to the docs that don't exist in the build yet would only cause confusion.