feat!: Add time stamping to speech to text (software-mansion#742)

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- [x] Yes
- [ ] No
This PR introduces breaking change as now the return type from
`transcribe` and `stream` methods are based on `TranscriptionResult`
type. Also now there is no commited / nonCommited properties of hook.
`stream` now is async generator.

- [ ] Bug fix (change which fixes an issue)
- [x] New feature (change which adds functionality)
- [ ] Documentation update (improves or adds clarity to existing
documentation)
- [ ] Other (chores, tests, code style improvements etc.)

- [x] iOS
- [x] Android

* Run demo app in `apps/speech` and run transcription for both time
stamping and regular mode (both from url and from real time audio to
test both `transcribe` and `stream` methods).
* Run voice chat in `apps/llm` to check if transcription appears. *NOTE*
This example seems to be a bit buggy.
* You need to run this on **android device** since this PR also fixes
`Speech to Text` demo app in case of using physical android device.
Earlier, required permissions for microphone weren't granted and the
example effectively didn't work.
* Check that documentation for modified sections is updated and that api
reference is correct as well.
* Run tests and check that they compile and work as previously.

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- [x] I have performed a self-review of my code
- [x] I have commented my code, particularly in hard-to-understand areas
- [x] I have updated the documentation accordingly
- [x] My changes generate no new warnings

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Author: msluszniak

.cspell-wordlist.txt

@@ -111,4 +111,4 @@ logprob
 RNFS
 pogodin
 kesha
-antonov
+antonov