Fix projection center conversions in EBSDDetector

[hakonanes]

Description of the change

Addresses multiple issues with conversions of projection center (PC) coordinates between conventions identified in #449, thanks to @IMBalENce. I believe the conversion will be more correct after these changes:

• EMsoft's xpc coordinate was wrongly flipped given v4 and v5, should be correct now. Basically, with EMsoft v5, a positive xpc now gives x* > 0.5.
• Conversion between TSL/Oxford and Bruker accounts for a potential aspect ratio not equal to 1, i.e. typically more detector columns than rows. This is necessary because TSL/Oxford defines all coordinates as fractions of detector columns, while Bruker defines y* and z* as fractions of detector height.

@IMBalENce, if you find the time, I would appreciate it if you could review the definitions below. If you do so, is it OK if I add you to the contributor list in the changelog to the next patch release, and also to the all-contributors table in the README?

We should release v0.5.3 from main after this PR is in.

Fix #449.

---

The EBSDDetector.__init__() docstring has these additions:

---

The EBSDDetector.pc_emsoft() docstring has these additions:

---

The EBSDDetector.pc_tsl() docstring has these additions (equivalent equations for pc_oxford()):

Progress of the PR

• Docstrings for all functions
• Unit tests with pytest for all lines
• Clean code style by running black via pre-commit
• Project some simulated patterns with EMsoft and kikuchipy and compare to confirm conventions

Minimal example of the bug fix or new feature

>>> import kikuchipy as kp
>>> detector1 = kp.detectors.EBSDDetector(
...    shape=(120, 160),
...    pc=(0.48935617839432832, 0.61856923343313686, 0.49397253582464035),
...    convention="oxford",
...    px_size=59.2,
...    binning=4,
...    sample_tilt=70.004152426213111
... )
>>> print("Bruker: ", detector1.pc[0], "\nEMsoft: ", detector1.pc_emsoft()[0], "\nOxford: ", detector1.pc_oxford()[0], "\n")
Bruker:  [0.48935618 0.17524102 0.65863005] 
EMsoft:  [1.7030115e+00 3.8971077e+01 1.8715631e+04] 
Oxford:  [0.48935618 0.61856923 0.49397254] 
>>> detector2 = kp.detectors.EBSDDetector(
...     shape=(120, 160),
...     pc=(-6.8120461, 155.88431, 18715.631),
...     convention="emsoft",
...     px_size=59.2,
...     binning=4,
...     sample_tilt=70.004152426213111
... )
>>> print("Bruker: ", detector2.pc[0], "\nEMsoft: ", detector2.pc_emsoft()[0], "\nOxford: ", detector2.pc_oxford()[0], "\n")
Bruker:  [0.4893562  0.17524102 0.65863   ] 
EMsoft:  [6.8120384e+00 1.5588431e+02 1.8715631e+04] 
Oxford:  [0.4893562  0.61856925 0.4939725 ] 

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 .all-contributorsrc and the table is regenerated.

[hakonanes]

Pinned h5py to <= 3.4 so it works with HyperSpy <= 1.6.4. This pinning should be removed when HyperSpy 1.6.5 is released, and HyperSpy's lowest supported version should be pinned to >= 1.6.5. I've added a TODO to remember this.

@IMBalENce: I've added you to package credits and the All Contributors table.

[hakonanes]

I've set the planned release date of the v0.5.3 patch release to coming Monday November 1st.

[hakonanes]

I'll merge after checks pass.