TimeSeries: Support `twa` aggregator for downstream timeseries writting

[yezhizi]

Search before asking

• [x] I had searched in the issues and found no similar issues.

Motivation

Note: It is recommended to complete #3217 first.

When using TS.CREATERULE to create a compaction rule, support the twa aggregator and ensure correct aggregation in the downstream series when adding samples.

Redis reference: https://redis.io/docs/latest/commands/ts.createrule/ Twa details

Solution

Refer to others aggregator like sum, avg Refer to #3151

Are you willing to submit a PR?

• [ ] I'm willing to submit a PR!