CI to identify used shader registers

[alandtse]

The CI can probably build the wiki page for us and also warn if there's a duplicate.

Regex

([\w<>]+)\s+([\w]+) : register\(([a-z]*[0-9]+)\);\s*/?/?(.*)

Matching group

1. Type
2. name
3. buffer
4. Comment

• [x] Identify feature and file name
• [x] Create markdown table
• [ ] Update wiki
• [ ] See if we can save comments like current use