Add a label when certain globs have not been modified

[ashleyfrieze]

Description:
Add a label when the PR does not contain certain files in its list of changes. This could be done by adding none alongside the any and all high level constructs.

Justification:
A team may wish to spot when a PR comes without unit tests, or without documentation. Imagine a label such as No Test Files or Missing Documentation.

Are you willing to submit a PR?
I've submitted #904

[mahabaleshwars]

Hi @ashleyfrieze,
Thank you for creating this feature request. We will investigate it and provide feedback as soon as we have some updates.

[ashleyfrieze]

Hey @mahabaleshwars - hopefully the PR is comprehensive and sympathetic with the code around it.

[ashleyfrieze]

@salmanmkc @chiranjib-swain - hey guys - would you be able to weigh in on this and look at whether #904 can be included? it would be a useful thing for us to be able to do to our PRs and I'm sure other folks would find it useful too.

E.g. labeling PRs where there were no unit tests, or no documentation added.