feat(host): Setup CLI Arguments

[refcell]

Description

Once the #131 sets up the programatic entrypoint for the host binary, a clap application can be setup with cli arguments that match the reference implementation.

See the op-program's flags.go.

Output

The host Cargo.toml will need to be updated with clap, tokio, and alloy-primitives as dependencies.

e.g.

[dependencies]
tokio = { version = "1.28.0", features = ["full"] }
clap = { version = "3.2.18", features = ["derive", "env"] }

The host binary main.rs should look something like this.

use std::path::PathBuf;
use std::vec::Vec;
use std::{env::current_dir, process};
use clap::Parser;
use alloy_primitives::B256;

#[tokio::main]
async fn main() -> Result<()> {
    let _cli = Cli::parse();

    Ok(())
}

/// Available networks.
#[derive(Debug)]
pub enum Network {
	/// Optimism Mainnet
    Optimism,
}

/// The host binary CLI application arguments.
#[derive(Parser, Serialize)]
pub struct Cli {
    /// The rollup chain parameters
    #[clap(long)]
    pub rollup_config: PathBuf,
    /// Predefined network selection.
    #[clap(long)]
    pub network: Network,
    /// The Data Directory for preimage data storage. Default uses in-memory storage.
    #[clap(long)]
    pub data_dir: Option<PathBuf>,
    /// Address of L2 JSON-RPC endpoint to use (eth and debug namespace required).
    #[clap(long)]
    pub l2_node_address: String,
	/// Hash of the L1 head block. Derivation stops after this block is processed.
	#[clap(long)]
	pub l1_head: B256,
	/// Hash of the L2 block at the L2 Output Root.
	#[clap(long)]
	pub l2_head: B256,
	/// Agreed L2 Output Root to start derivation from.
	#[clap(long)]
	pub l2_output_root: B256,
	/// Claimed L2 output root to validate
	#[clap(long)]
	pub l2_claim: B256,
	/// Number of the L2 block that the claim is from.
	#[clap(long)]
	pub l2_block_number: u64,
	//// Path to the genesis file.
	#[clap(long)]
	pub l2_genesis_path: PathBuf,
	/// Address of L1 JSON-RPC endpoint to use (eth namespace required)
	#[clap(long)]
	pub l1_node_address: String,
	/// Address of the L1 Beacon API endpoint to use.
	#[clap(long)]
	pub l1_beacon_address: String,
	/// Trust the L1 RPC, sync faster at risk of malicious/buggy RPC providing bad or inconsistent L1 data
	#[clap(long)]
	pub l1_trust_rpc: bool,
	/// The kind of RPC provider, used to inform optimal transactions receipts fetching, and thus reduce costs.
	#[clap(long)]
	pub l1_rpc_provider_kind: Vec<RpcKind>,
	/// Run the specified client program as a separate process detached from the host. Default is to run the client program in the host process.
	#[clap(long)]
	pub exec: String,
	/// Run in pre-image server mode without executing any client program.
	#[clap(long)]
	pub server: bool
}

[refcell]

Implemented in #143