feat: allow pip install roundup[jinja2,extras,test,charting] Add some optional dependencies to setup.py for roundup. I am using them for testing and they may be generally useful. For right not I am not documenting them. They are for internal use. Also fix formatting of a kwarg.

[run]

# ignore the dist utils. They are not part of the code base
# we are going to test. They are used by maintainers only.
omit = roundup/dist/*