Update notes.md
Re 9341. Eliminate cppcheck warnings.
Re #9341. Fix doxygen warnings.
Re #9341. Fix typo to eliminate doxygen warnings.
Re #9341. Reinstate start point for doxygen exclusion zone.
Re #9341. Add missing parameter documentation.
Re #9341. Document new(er) parameter.
Re #9341. Correct type that led to warning from doxygen.
Re #9341. Clear doxygen warnings

Fake parameter documentation which isn't great but is consistent with what
else is there for this function.
Re #9341. Don't document parameter that doesn't exist.
Re #9341. Remove unused file.
Re #9341. Add missing documentation strings.
Re #9341. Fix doxygen warnings.
Re #9341. Fix doxygen warnings.
Merge branch 'bugfix/9341_doxygen_and_ccpcheck_warnings' into develop