WIP Write Stream recovery with stream token

[schmidt-sebastian]

Proof of concept.

[google-oss-bot]

Binary Size Report

Affected SDKs

• @firebase/firestore

  Type	Base (0d6f14e)	Head (379796b)	Diff
  browser	252 kB	252 kB	+946 B (+0.4%)
  esm2017	195 kB	195 kB	+310 B (+0.2%)
  main	494 kB	495 kB	+1.32 kB (+0.3%)
  module	249 kB	250 kB	+924 B (+0.4%)

• @firebase/firestore/memory

  Type	Base (0d6f14e)	Head (379796b)	Diff
  browser	192 kB	193 kB	+946 B (+0.5%)
  esm2017	149 kB	150 kB	+310 B (+0.2%)
  main	370 kB	371 kB	+1.32 kB (+0.4%)
  module	190 kB	191 kB	+924 B (+0.5%)

• firebase

  Type	Base (0d6f14e)	Head (379796b)	Diff
  firebase-firestore.js	290 kB	291 kB	+911 B (+0.3%)
  firebase-firestore.memory.js	232 kB	233 kB	+911 B (+0.4%)
  firebase.js	823 kB	824 kB	+913 B (+0.1%)

Test Logs

• Base (0d6f14eb): https://github.com/firebase/firebase-js-sdk/actions/runs/118279340
• Head (379796b0): https://github.com/firebase/firebase-js-sdk/actions/runs/118376300