Adding camera calibration tutorial

[annacasto]

Describe your changes
Added a tutorial for the checkerboard calibration and camera calibration functions.

Type of update
Is this a:

• Update to documentation

Associated issues
Reference associated issue numbers. Does this pull request close any issues?

Additional context
Add any other context about the problem here.

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• PR functionality reviewed in a Jupyter Notebook
• All tests pass
• Test coverage remains 100%
• Documentation tested
• New documentation pages added to plantcv/mkdocs.yml
• Changes to function input/output signatures added to updating.md
• Code reviewed
• PR approved

[deepsource-io]

Here's the code health analysis summary for commits 1d16aab..cd47354. View details on DeepSource ↗.

Analysis Summary

Analyzer	Status	Summary	Link
Python	✅ Success		View Check ↗
Test coverage	✅ Success		View Check ↗

Code Coverage Report

Metric	Aggregate	Python
Branch Coverage	100%	100%
Composite Coverage	99.7%	99.7%
Line Coverage	99.7%	99.7%

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[k034b363]

Just one typo that I can see, after the calibration it says "Read in distored image".
Not sure how detailed you want this tutorial to be, but I might suggest including a note about how many squares the checkerboards have to have minimally (I think I remember you mentioning this during lab meeting, but I could be wrong?)

[annacasto]

Thanks! I fixed typos and added a line about minimum checkerboard size.

[nfahlgren]

Looks great, could we add the GitHub and Colab buttons here like we started doing on the newer tutorials? Example here: https://plantcv.readthedocs.io/en/latest/tutorials/kmeans_clustering_tutorial/

[annacasto]

Just added those new buttons!