chore(client, builder): rework CLI args

[danyalprout]

Description

Today the client and builder extend the Reth CLI args.

We should stop extending the Reth CLI and have our own options, this will allow us to:

1. Have defaults for running Base nodes (i.e. no need to expose --chain, maybe it should be --network sepolia,mainnet)
2. Have preconfigured flavors of nodes, with sensible defaults e.g.
   1. base memepool ...
   2. base rpc ...
3. Allow us to expose flags for the integrated consensus layer feat(consensus): integrated consensus client inside client and builder #381, without them being nested in the Reth args.