Newversion

Added

- `[cli]` `package` command to get Python package version
- `[cli]` `set_package` command to set Python package version

Added

- `[cli]` `package` command to get Python package version
- `[cli]` `set_package` command to set Python package version

Added

- `[cli]` `package` command to get Python package version
- `[cli]` `set_package` command to set Python package version

Added

- `[cli]` `echo "1.2.3" | newversion ne "1.2.4"` comamnd to raise error if version is not equal to other

Changed

- `[api]` reworked `Executor` for easier usage as API

Fixed

- `[packaging]` console entrypoint `newversion` was not present in wheel package
- `[version]` error on getting `epoch`
- `[packaging]` `typing_extensions` are no longer needed on `python > 3.8`

Fixed

- Support quotes in pipe-in