add make test for run ut easily

[LiZhenCheng9527]

What type of PR is this? /kind enhancement

What this PR does / why we need it:

Which issue(s) this PR fixes: Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

[LiZhenCheng9527]

I'll add the documentation for running ut as soon as I can!

[codecov-commenter]

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All modified and coverable lines are covered by tests :white_check_mark:

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unittests	31.87% <ø> (?)

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[kmesh-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: hzxuzhonghu

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[hzxuzhonghu]

/lgtm

We should improve the scripts under ./hack, not sure it they can run sucessfully because we use relative patch ./pkg