TimeSeries: Support `IGNORE` option when creating timesereies

[yezhizi]

Search before asking

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

Motivation

When creating a time series, the [IGNORE ignoreMaxTimedestampDiff ignoreMaxValDiff] options can be specified. During samples writing through TS.ADD/TS.MADD, samples meeting certain condition will be ignored.

Redis reference: https://redis.io/docs/latest/commands/ts.create/

Solution

• Add two fields(ignoreMaxTimedestampDiff ignoreMaxValDiff) to timeseries metadata
• When adding samples, determine whether the "ignore" condition is met.
• Add go integrated test

Are you willing to submit a PR?

• [ ] I'm willing to submit a PR!

[marcomit]

I can work on this!