[3.0] Refactor SilkTouch to Use Roslyn Workspaces + more

[Perksey]

Summary of the PR

Refactors SilkTouch to make it fit for the future.

Related issues, Discord discussions, or proposals

Links go here.

Further Comments

ClangScraper is now a mod in its own right

It was too special and I wanted to ensure any major refactor made the core of SilkTouch nothing but a mod execution and documents pipeline, rather than being magical and tied to ClangSharp intrinsically.

Use Roslyn Workspaces

This is so we can make use of the Renamer which uses the semantic model to determine usages of the symbol we're renaming, rather than having to work all that context out ourselves. This is much slower, but more correct and fixes issues encountered in #2234 wherein the renames didn't propagate through thing->a->b for instance

Repository structure

As discussed in team talk.

Dependencies

• [3.0] Rejig the repository structure #2296
  • [3.0] SDL Bindings #2207

Dependents

• Adding OpaqueCOM structs #2234
• [3.0] Windowing Rewrite #2278

Supersedes

• Closes Adding SyntaxContext #2245

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[Perksey]

This has been rebased and to the best of my knowledge and belief it's ready for review @curin. It's quite hard to review though, I'd focus on the SilkTouch changes. Most of the bindings changes are fiddling with usings or member ordering, which really I would like to somehow make deterministic so it doesn't pollute PRs like it has here.