Add doit and GitHub actions

[bollwyvl]

References

• fixes #53

Code changes

• [x] dx
  • [x] add doit
  • [x] lint
    • [x] py
    • [x] robot
    • [x] js
    • [x] misc prettier
    • [x] ipynb
  • [x] build
  • [x] test
  • [x] docs
  • [x] remove anaconda-project
• [x] ci
  • [x] add github actions
  • [x] split build/test
  • [x] remove azure pipelines
• [x] docs
  • [x] contributing

User-facing changes

n/a

Backwards-incompatible changes

n/a

Chores

• [x] linted
• [x] tested
• [x] documented
• [x] changelog entry