Viur-cli

- [BREAKING]: `viur release` requires pyenv to enforce python 3.9.5

- added: config format versioning
- added: pyodide version
- added: conf update function
- added: npm command by default it tries to call npm run build
- added: release command
- [BREAKING]: vue command removed, use npm instead
- [BREAKING]: assets command removed, use npm instead
-

- fix: get-pyodide now uses 0.19

- feat: Updated python-minifier to allow Python 3.10

- feat: Autocompletion for bash and zsh

- fix: `viur init` with no project.json