Add rect() as alias for getRect() command.

[dikwickley]

Adds one of the alias mentioned in #3901
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[dikwickley]

sanity test

[garg3133]

Also, not sure if I told you this before, always use imperative style while writing commits or PR titles.

For example, the PR title should be: "Add rect() as alias for getRect() command."

[dikwickley]

Also, not sure if I told you this before, always use imperative style while writing commits or PR titles.

For example, the PR title should be: "Add rect() as alias for getRect() command."

My bad, you have mentioned it before, will be careful onwards