Pype-cli

- Activate mypy for full code base
- Harden plugin resolving
- Fix dependency statements
- Fix broken pype pype.config.logger
- Rename test helpers to not confuse pytest
- Add tests for config_model

- Source code now fully typed and typings ensured via mypy
- Extended 'pype pype.config system-info' with venv infos
- Removed 'pype pype.config version'
- Fixed .env file configuration for PyLance
- Fixed .venv discovery and configuration file handling
- Added pype-cli as editable for .venv development
- Ensure system configuration file is not tampered with
- Added mypy build process
- Lean setup.py and lower python bound 3.7
- Add vscode extensions recommendations

- Clean up templates

- Fix template.py

- Fix open formatting and Makefile issues
- Add documentation how to show benchmark information

- Add load time benchmarking using `PYPE_BENCHMARK_INIT=1` as trigger variable
- Replace make script with Makefile
- Replace Travis CI with GitHub actions
- Upgrade build environment