Renaming: BoundingBox -> BoundingBoxes

[NicolasHug]

EDIT: actually all this does is rename BoudingBox into BoundingBoxes: the class, and its occurrences in transforms like SanitizeBoudingBoxES. BoudingBoxFormat is left unchanged. Also renamed the correspdoning kernels to take an extra es.

---

This PR renames:

1. BoundingBoxFormat into BBoxFormat
2. The BoundingBox class (and its use in methods like SanitizedBoundingBox into BBoxes:

find . | grep -e ".py$" -e ".rst$" | xargs sed -i "s/BoundingBoxFormat/BBoxFormat/g
find . | grep -e ".py$" -e ".rst$" | xargs sed -i "s/BoundingBox/BBoxes/g"

A few thing to note:

• Feel free to disagree on 1. and suggest alternatives. (We could name it BBoxesFormat but meh. BoundingBoxesFormat is pretty long IMHO.)
• Feel free to disagree about shortening BoundingBox into BBox. Personally, I think BBox is just as expressive and clear, for half of the length needed (and BoundingBoxesFormat.XYXY or SanitizeBoundingBoxes are kinda long), so I think its a good thing. I won't die on that hill though.
• Ultimately the only thing I care about is to add an s to the BoundingBox class - we had agreed on that already. The rest, I'll yield to whatever you prefer.

CC @vfdev-5 @pmeier

cc @vfdev-5

[pytorch-bot]

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❌ 4 New Failures

As of commit 829e50e:

NEW FAILURES - The following jobs have failed:

• bc (gh)
• unittests-linux (3.8, linux.g5.4xlarge.nvidia.gpu, cuda, 11.8) / linux-job (gh)
• unittests-windows (3.10, windows.4xlarge, cpu) / windows-job (gh)
• unittests-windows (3.9, windows.4xlarge, cpu) / windows-job (gh)

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[pmeier]

👍 for 1. and 3. For 2. I prefer keeping it in the long version, i.e. BoundingBoxes and BoundingBoxFormat. However, I'm not going to block over that. @vfdev-5 opinion?

Edit: Sorry this is confusing. With 1., 2. and 3. I mean the three bullet points in the top comment. To re-iterate, I prefer BoundingBoxes and BoundingBoxFormat

[pmeier]

Lint failures are real. You need to run the auto-formatters, since a few lines are shrinking when going to BBoxes.

[NicolasHug]

yes and rename the kernels as well.. just looking for consensus first

[NicolasHug]

This call is a bit awkward now.

I didn't want to change make_bouding_box into make_bounding_boxes because make_bouding_boxes already exists.

I'm hoping we'll be able to get rid of the current make_bouding_boxes util soon anyway? CC @pmeier

[NicolasHug]

Tests were passing in previous commit and docs are now passing, merging