Existing subsets hints in creator

[iLLiCiTiT]

Issue

Subset hints in Creator tool dropdown do not find out other possible user inputs if user intup has different letter case than concatenated subset name. That is because user input is replaced in concatenated subset name to get possible regex to find other possible user inputs.

user_input = "anim"
subset_name = "renderCompositingAnim"
expected_regex = "renderCompositing(.+)"
real_regex = "renderCompositingAnim"

Changes

• replacement of user input in concatenated subset name is not case sensitive

	Related Prs
OpenPype	ynput/OpenPype#1503

	Pype 2 PRs
pype	ynput/OpenPype#1502
avalon-core	#333