WIP: native ignore-mutation support in applier

[sdowell]

No description provided.

[google-oss-prow]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[google-oss-prow]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[sdowell]

/test all

[sdowell]

/test all

[sdowell]

/test all

[sdowell]

/test all

[google-oss-prow]

@sdowell: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
kpt-config-sync-presubmit	2315e88	link	true	/test kpt-config-sync-presubmit

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