Bump black from 22.10.0 to 22.12.0

Bumps [black](https://github.com/psf/black) from 22.10.0 to 22.12.0.
- [Release notes](https://github.com/psf/black/releases)
- [Changelog](https://github.com/psf/black/blob/main/CHANGES.md)
- [Commits](psf/black@22.10.0...22.12.0)

---
updated-dependencies:
- dependency-name: black
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Add missing sympy dependency

Fix #75 -- Update packaging and CI to PEP518

Close #74

Merge pull request #66 from OmenApps/underscore_name_fix

Fix: Correcting factor names to use dash instead of underscore.

Add point as distance unit

In typography points are a standard unit of measure and are equal to
1/72 of an inch or ca. 0.3528mm. The Portable Document Format (PDF) also
specifies its standard coordinate system in 1/72 inch (PDF 32000-1:2008,
section 8.3.2.3).

Signed-off-by: Michael Hanselmann <[email protected]>

Fix flake8 issues

Fix #40 -- Raise type error with proper message

If two measures are multiplied that are not compatible – should
not be multipled, like mass x mass -, the error message should
indicate that incompatibility.

Fix readme for PyPi and add dist check to CI suite

 Fix readme and add docs build to CI suite

Switch to Decimal based values