feat(firestore): implement withCoverter

[JiriHoffmann]

Description

Hello! I'm sorry for introducing such a large PR, but I hope it's gonna be worth it.

This PR adds the withCoverter functionality to both the namespace and modular APIs and updates types accordingly.

Both type and e2e tests are a 1:1 copy of the Firebase JS SDK to ensure feature parity.

Related issues

Closes #8611 and these 2 PRs #8698 #8672

Release Summary

Implements withConverter from Firebase JS SDK

Checklist

• I read the Contributor Guide and followed the process outlined there for submitting PRs.
  • Yes
• My change supports the following platforms;
  • Android
  • iOS
  • Other (macOS, web)
• My change includes tests;
  • e2e tests added or updated in packages/\*\*/e2e
  • jest tests added or updated in packages/\*\*/__tests__
• I have updated TypeScript types that are affected by my change.
• This is a breaking change;
  • Yes
  • No

🔥

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[mikehardy]

Hello! I'm sorry for introducing such a large PR, but I hope it's gonna be worth it.

That is not something I'm used to people apologizing for, this certainly looks worth it. Thanks! Going in the review queue - additionally - if my patch-package generation workflow is working correctly you should be able to start depending on the work relatively easily already via usage of the patch, which should apply cleanly to the current released version of firestore package on npmjs.com

[mikehardy]

I've fixed the CI issues that were happening with iOS and rebased this PR on to them then force-pushed this PR back out with that new commit history built on the iOS e2e fix

I resolved the conversation on the ignoreUndefinedProperties settings and peeled it off to a separate issue so we can move on with out it

This is now just on me to do a real code review on it, then if it's good - merge and release. Will be a huge feature, there will be much rejoicing