Visualization matplotlib

[josenino95]

Draft on "Data visualization with Pandas and Matplotlib" episode. Now that I'm creating this PR, I think that even the episode name can be improved. On the same lines as Toby's PR, here are some notes:

• It tries to mirror the Data visualization with ggplot2 episode from the DC Ecology R lesson.
• While I was writing it I realized exactly mirroring the R lesson would not be possible, as ggplot code can be very different (and simpler) than matplotlib in some cases. Specially for overlaying making jitter plots. Therefore I turned to keep code simple and show some interesting stuff that can be done with matplotlib, like subplots and sharing axis between subplots.
• At the end I felt the need to mention other popular plotting libraries. But if you feel that is too much content, we can delete it. Or improve the content.
• I also took a swing at estimating the time of the lesson with exercises.

[github-actions]

🆗 Pre-flight checks passed 😃

This pull request has been checked and contains no modified workflow files, spoofing, or invalid commits.

It should be safe to Approve and Run the workflows that need maintainer approval.

[josenino95]

Sorry, this PR was meant to be for the incubator fork we are working on for the revamp of the lesson.