Use INormalizationLayer for GroupNorm

[HolyWu]

Description

Using INormalizationLayer has higher performance than the break-down implementation. Also resolved the issue mentioned by @cehongwang at #3014 (comment).

Break-down implementation:
Min=8.936863899230957 ms, Mean=9.042274608612061 ms, Max=9.334688186645508 ms

INormalizationLayer:
Min=7.136256217956543 ms, Mean=7.218872976303101 ms, Max=7.480256080627441 ms

Checklist:

• My code follows the style guidelines of this project (You can use the linters)
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas and hacks
• I have made corresponding changes to the documentation
• I have added tests to verify my fix or my feature
• New and existing unit tests pass locally with my changes
• I have added the relevant labels to my PR in so that relevant reviewers are notified

[zewenli98]

CI error seems not related to the PR. This PR LGTM

[zewenli98]

@HolyWu I think this PR is almost good to go. Can you rebase/merge again? thanks