Add README to eigen-cli

crates/eigen-cli/README.md

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+# Eigen Cli
+
+The `eigen-cli` crate provides the following utilities.
+
+## egnaddrs
+This tool is used to help debug and test eigenlayer/avs deployments and contract setups.
+
+### Usage
+
+Currently egnaddrs only supports deriving contract addresses starting from a registry-coordinator or service-manager address.
+To test it using a local anvil instance, run:
+```bash
+$ make start-anvil
+```
+
+Then run the eigen-cli:
+```bash
+$ cargo run --package eigen-cli -- egnaddrs --registry-coordinator 0x9E545E3C0baAB3E08CdfD552C960A1050f373042
+```
+
+It then prints the following datastructure:
+```bash
+{
+  "avs": {
+    "bls-pubkey-compendium (shared)": "0x322813Fd9A801c5507c9de605d63CEA4f2CE6c44",
+    "bls-pubkey-registry": "0xa82fF9aFd8f496c3d6ac40E2a0F282E47488CFc9",
+    "index-registry": "0x1613beB3B2C4f22Ee086B2b38C1476A3cE7f78E8",
+    "registry-coordinator": "0x9E545E3C0baAB3E08CdfD552C960A1050f373042",
+    "service-manager": "0xc3e53F4d16Ae77Db1c982e75a937B9f60FE63690",
+    "stake-registry": "0x851356ae760d987E095750cCeb3bC6014560891C"
+  },
+  "eigenlayer": {
+    "delegation-manager": "0xCf7Ed3AccA5a467e9e704C703E8D87F634fB0Fc9",
+    "slasher": "0x5FC8d32690cc91D4c39d9d3abcBD16989F875707",
+    "strategy-manager": "0xDc64a140Aa3E981100a9becA4E685f962f0cF6C9"
+  },
+  "network": {
+    "chain-id": "31337",
+    "rpc-url": "http://localhost:8545"
+  }
+}
+```
+
+## egnkey
+This tool is used to manage keys for AVS development purpose
+
+Features:
+- [Generate ecdsa or bls key in batches](#generate-ecdsa-or-bls-key-in-batches)
+
+### Generate ecdsa or bls key in batches
+
+To create in a random folder:
+```bash
+cargo run --package eigen-cli -- egnkey generate --key-type ecdsa --num-keys <num_key>
+```
+
+To create in specific folder:
+```bash
+cargo run --package eigen-cli -- egnkey generate --key-type ecdsa --num-keys <num_key> --output-dir <path_to_folder>
+```
+
+To create `ECDSA` and `BLS` keys in a random folder:
+```bash
+cargo run --package eigen-cli -- egnkey generate --key-type both --num-keys <num_key>
+```