Extend usage of inputParser in Bio-Formats MATLAB

This PR addresses https://trac.openmicroscopy.org.uk/ome/ticket/12462 by:
- extending the usage of the `inputParser` in `bfGetPlane/bfsave` as suggested by @carandraug
- adding additional input parsing unit tests for these functions

To test this PR:
- check the MATLAB job is still green
- check the functions still work as expected