Testing for GRS

[0HyperCube]

Things to test:

• Should work after the scale is set to 0, or at least not crash (Add test for scaling objects to zero without any crash #2491)
• Should work with only one anchor (see Test that select tool GRS works with only one anchor #2502)
• Should work when the document is panned, zoomed, and rotated (Add tests for document panning, zooming, and rotating #2492)
• Should work when only one anchor point is selected (Test that select tool GRS works with only one anchor #2502)
• Cancelling works properly, using right click and escape (Add tests for GRS transform cancellation #2467)
• If the commands are chained (e.g. pressing G and then R without committing / cancelling) then this should work nicely (Add test for chained GRS transformations #2475)
• Should work with different selections and groups (Add GRS tests for different types of nested layer multi-selections #2518)

[rahat2134]

@0HyperCube Please assign me the issue.

[Keavon]

@rahat2134 we don't do issue assignments until PRs are merged, but you can post your PR number as a comment here once you have a reasonably complete PR ready, that way people know you're working on it.

[rahat2134]

@Keavon Sounds good!