feat(functions): Expose modular API that matches the Firebase web JS SDK v9 API

[russellwheatley]

Description

Related issues

Release Summary

Checklist

• I read the Contributor Guide and followed the process outlined there for submitting PRs.
  • Yes
• My change supports the following platforms;
  • Android
  • iOS
• 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

Test Plan

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Name	Status	Preview	Comments	Updated
react-native-firebase	✅ Ready (Inspect)	Visit Preview	💬 Add your feedback	Dec 6, 2022 at 3:17PM (UTC)

1 Ignored Deployment

Name	Status	Preview	Comments	Updated
react-native-firebase-next	⬜️ Ignored (Inspect)			Dec 6, 2022 at 3:17PM (UTC)

[mikehardy]

Nice!

This looks like what I expect based on previous app modular implementation.

@Lyokone, what do you think?

[codecov]

Codecov Report

Merging #6764 (19f6ccf) into main (254e7ad) will decrease coverage by 20.97%.
The diff coverage is 50.00%.

@@              Coverage Diff              @@
##               main    #6764       +/-   ##
=============================================
- Coverage     54.03%   33.07%   -20.96%     
=============================================
  Files           217      218        +1     
  Lines         10790    10798        +8     
  Branches       1699     1699               
=============================================
- Hits           5829     3570     -2259     
- Misses         4668     7148     +2480     
+ Partials        293       80      -213     

[Lyokone]

@mikehardy It is what I expect too :)