Hamburger Menu

[AdwaithBatchu]

PR summary

PR checklist

• "closes #0000" is in the body of the PR description to link the related issue
• new and changed code is tested
• Plotting related features are demonstrated in an example
• New Features and API Changes are noted with a directive and release note
• Documentation complies with general and docstring guidelines

[r3kste]

1. You need to figure/clarify how to handle cases with multiple subplots (also mixture of 3d and 2d). There are two solutions I could think of:

• Add all three entries for all 3d subplots. So if a figure has two 3d axes, then the hammburger menu would have 6 entries
• Use just three entries, which controls all axes.

Both of the above are not ideal. I feel like the context menu was much better suited, so you might have to try to convince them, by mentioning this issue.

2. I also left a review comment about a possible way to manage entries without introducing view_init in backend_bases. Check that out, but is currently of lower priority than the above point.