Add v1.35 enhancements and code freeze exceptions

[rayandas]

What type of PR is this:

/kind documentation

What this PR does / why we need it:

Documenting the v1.35 Enhancement Freeze exception requests.

Which issue(s) this PR fixes:

NA

Special notes for your reviewer:

cc: @drewhagen

[k8s-ci-robot]

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[drewhagen]

@rayandas at this stage, can we add a commit to the code freeze exceptions as well?

[rayandas]

@rayandas at this stage, can we add a commit to the code freeze exceptions as well?

Yeah just pushing another commit with the code freeze changes in a bit. Couple of them are left.

[drewhagen]

@rayandas can you add these doc freeze exceptions as well?
1.35 Enhancements Tracking

I appreciate you, thanks!

[drewhagen]

cc: @Urvashi0109

[rayandas]

@drewhagen @dipesh-rawat Updated the PR.