Add more execute information in statements

[breezewish]

Feature Request

Is your feature request related to a problem? Please describe:

Currently RocksDB related and per-executor metrics are missing from the statements, which makes it hard to diagnose some kind of problems.

Describe the feature you'd like:

Record more execution information, such as:

• The execution time and # of iterations of each TiDB & TiKV executor (with quantiles introduced by Add Latency Quantiles (like 99% Query Time) to Statements #17621 )
• RocksDB internal scanned keys, skipped keys
• RocksDB # of block-cache read
• RocksDB # of block read
• RocksDB block read bytes

Describe alternatives you've considered:

The fields above are also planned to add to Slow Query: #17557

Teachability, Documentation, Adoption, Migration Strategy: