Integrate the mock reactor and allow running it with a flag

[rach-id]

In order to do the investigation in #1385 (comment), we implemented a mock reactor that floods the network with random data to load test the P2P stack.

It would be good to take the mock reactor implementation from the branches mentioned in the comment above, polish it, then integrate it in v0.34.x branch.

Also, would be amazing to have a CLI flag, --only-load-reactor for example, that allows switching from a consensus network to just running the mock reactor to load test the P2P stack.

[Admaing]

I would like to try to solve this issue as my first contribution @rach-id

[rach-id]

Awesome 🎉 ill assign you

[abhirajprasad]

Hey, I noticed this issue is currently assigned. I was wondering if there’s still an opportunity to contribute to this or assist in any way. I'm interested and would be happy to collaborate or pick it up if it becomes available. Let me know!

[rach-id]

@abhirajprasad Here is a list of issues you can help with:

core: good first issue Good for newcomers

app: https://github.com/celestiaorg/celestia-app/labels/good%20first%20issue