Binding arguments for AsyncInsert interface

[mdonkers]

Summary

Proposal for #896, allowing argument replacement in INSERT query strings. To help constructing these for AsyncInserts.

Also adds parsing OrderedMap for binding as was done for other arguments here: #763

Includes tests, but not yet a changelog. First looking for feedback and will then cleanup where needed.

Checklist

Delete items not relevant to your PR:

• Unit and integration tests covering the common scenarios were added
• A human-readable description of the changes was provided to include in CHANGELOG
• For significant changes, documentation in https://github.com/ClickHouse/clickhouse-docs was updated with further explanations or tutorials

[jkaflik]

Thanks, @mdonkers
I will review this today/tomorrow.

[jkaflik]

Thank you. LGTM. Can we please add an explicit map test/example for both protos?

[mdonkers]

Thank you. LGTM. Can we please add an explicit map test/example for both protos?

The change for Async inserts for both protos are unrelated to the OrderedMap formatting. That one only applies to the string replacement / formatting. For which I added a test (see the .format test).

The Async insert changes are tested via the examples. Which I changed also to have (?, ?, ?) instead of fmt.Sprintf(...) to show the replacement.

Perhaps if clearer I can also split up in two separate PRs. Would be after my holiday then though :-)

[jkaflik]

@mdonkers, right, it makes sense now. Would be good to have it as separate PRs, but let's push it this way.