Draft: Api docs

Generating API docs with OpenSCAD docsgen.

• Write a load more API docs
• Either wait for fixes to OpenSCAD docsgen to be released, or make some sort of more defined tag of the fixed version
• Work out how we are deploying this.

Should we be using openscad_docsgen

Pros of openscad_docsgen

• It is already written and mostly works

Cons of openscad_docsgen

• Really picky about everything being formatted exactly
• Throws errors if certain information is provided an not other info
• Requires a lot of manual copying of information (file name, function name, usage, etc) with no checking that it is consistent with the actual code.
• We will need to pin a version as there are often breaking changes without warning as it is really only deigned to do the docs for their own project BOSL2