Naming processor, used for [msl]

[kvark]

Fixes #264
The idea is having a global registry of names, to avoid collisions. We fill it up as a separate step before writing down Module contents, so that during writing we only need to look up those names in a created map.

[monocodus]

This is an autogenerated code review.

Checker summary (by rust_clippy):
The tool has found 1 warnings, 1 errors.

[Napokue]

Looks good, thank you! I only have two minor comments.

[kvark]

Thanks for the review! I believe I addressed the comments, also tested this a bit and found one more thing I fixed :)