Add types for `Sqlite3Worker1Promiser`

[sameoldlab]

Progress:

• [ ] Mostly done with Sqlite3Worker1PromiserConfig. Not sure what goes in for the args of generateMessageId
• [ ] Need clearer documentation for Promiser Method open's filename and vfs
• [ ] exec needs to add a full list of arguments, js eqivalent for sql VALUE value used in row and bind
• [ ] There is additional metadata returned by Promiser. Described as "// possibly other metadata ..." on sqlite docs. Not sure how stable these are / if they should be documented here.
• [ ] Need to add type for Promiser response error stack trace array

As the methods are very similar to worker1, I'm hoping I can reduce what is specified here and reuse the existing types where possible.

[tomayac]

How does this relate to https://github.com/sqlite/sqlite-wasm/pull/54? Could you maybe join forces?

[sameoldlab]

How does this relate to #54? Could you maybe join forces?

Yes, It's for the same issue. I made my PR against the sqlite:types-improvement branch, so ideally that could get merged to main when everything is complete.

[sameoldlab]

In that case would it make more sense for me to mark this as ready for review now and then track progress in https://github.com/sqlite/sqlite-wasm/pull/54?

[tomayac]

I think so, yes. Please ask someone from #54 for a review, and let's then merge it, so from thereon you can continue working on #54. Thanks!

[tomayac]

Merged, as whatever you have is better than the stub we had in #54. Let's continue the work on #54. Thank you!