Make simulator Great Again!

## Development Task

- Currently, we have many components to simulate the interaction with pd, `pd-api-bench`, `pd-tso-bench`, `pd-heartbeat-bench`, `pd-simulator`. We can integrate them step by step, with lower learning costs and easier interaction testing of various pd's.
- Enhance simulator to support 1000w regions and 300 stores
- #8215
- #8220
- #5677
- #8245
- #8246
- #8257
- #8269
- #8304
- #8318
- #8376
- TODO:
- add rules case
- Enhance heartbeat bench for daily regression testing
- #8235
- Enhance tso bench
- #7756
- After that we can provide pd the same specification machine to deploy the real pd under the big cluster, simulate the request number of TiDB/TiKV + TiKV heartbeat heartbeat report + all kinds of scheduling for the region and so on.
- #8140

### mock TiKV data to archive the following goals:
- can balance region...
- can support three forms node: meta-node/simulator(simple raft)/real-tikv
- support unified interface to interact with real-tikv

### mock TiDB&TiKV API

existed tool usages like

`./bin/pd-api-bench -http-cases GetRegionStatus-1+1,GetMinResolvedTS-1+1 -client 1 -debug true`

### mock TiKV heartbeat/TSO

existed tool usages like
`./bin/pd-heartbeat-bench --config=./tools/pd-heartbeat-bench/config-template.toml --pd-endpoints http://127.0.0.1:2379`

### Others

- support front operator

### Related

- integration simulator tools #8140

#5468 extend simulator
#6922 extend API bench