Fix EDAX-Bruker (PCy, PCz) conversion for rectangular detectors

[hakonanes]

Description of the change

This PR changes the EDAX->Bruker (PCy, PCz) conversion for rectangular detectors. The correct conversion is as follows:

PCy = 1 - y/Ny PCz = z / min(Nx, Ny)

where (PCy, PCz) are the Bruker projection center (PC) y and z coordinates, (Nx, Ny) are the number of detector columns and rows, and (y, z) are the EDAX TSL PC y and z coordinates.

The Oxford->Bruker conversion stays the same.

This change follows the same change coming in a new version of PyEBSDIndex (relevant commit https://github.com/drowenhorst-nrl/PyEBSDIndex/commit/ea22dfd3c2c8f7de60d4d3750db1a85ec1be1369). Hence, we should wait to merge this until a new version of PyEBSDIndex is available with this change.

Progress of the PR

• [x] Docstrings for all functions
• [x] Unit tests with pytest for all lines
• [x] Clean code style by running black via pre-commit
• [ ] Wait for a new version of PyEBSDIndex

For reviewers

• [ ] The PR title is short, concise, and will make sense 1 year later.
• [ ] New functions are imported in corresponding __init__.py.
• [ ] New features, API changes, and deprecations are mentioned in the unreleased section in CHANGELOG.rst.
• [ ] New contributors are added to release.py, .zenodo.json and .all-contributorsrc with the table regenerated.

[hakonanes]

This PR will be added to another PR preparing a 0.9 release compatible with PyEBSDIndex v0.2.