Add VictoriaMetrics to the list of tested databases

[valyala]

It would be great if VictoriaMetrics would be added to the list of supported databases for the benchmark. VictoriaMetrics understands Influx line protocol, so it can share data generation and data ingestion paths with InfluxDB. As for query path, VictoriaMetrics understands PromQL, so PromQL queries must be written for the supported queries. They can be based on the following pull request - timescale/tsbs#96 .

[alsargent]

Sure, we've added VictoriaMetrics to our list of benchmarked databases. I don't currently have an estimate as to when we'll see a pubished benchmark, however.