Add documentation setup with automated building and publishing to github pages

[jsheunis]

Look into JSdoc; https://github.com/psychoinformatics-de/shacl-vue/pull/26/commits/863e84c825cf1ff8c858c9255b382ebfa6f2879e already has a single example of a jsdoc-based docstring for a module.

For an html theme, investigate:

• https://github.com/ankitskvmdam/clean-jsdoc-theme
• https://github.com/SoftwareBrothers/better-docs
• https://github.com/clenemt/docdash