This PR enables creation of live snapshot of databases (arbitrumdata, l2chaindata, ancient and wasm) without having to shutdown the node.

Supply the destination directory for the databases using the reloadable config option --snapshot-dir=<pathToDestDir> and one can trigger snapshot generation by invoking an arbdebug rpc command arbdebug_createDBSnapshot

Note: This feature is only available for archive nodes running on pebble databases
Sample usage-

start node => ./target/bin/nitro --conf.file=<pathToConfigWithSnapshotDir>
trigger snapshot creation => curl -X POST 127.0.0.1:8547 -H "Content-Type: application/json" --data '{"jsonrpc": "2.0","method": "arbdebug_createDBSnapshot","params": [],"id": 1}'

Testing

Triggered snapshot creation and successfully reused it run a new node in multiple scenario- small and large db sizes for arb1 and arb-sepolia nodes.

Pulls in geth PR- OffchainLabs/go-ethereum#380
Resolves NIT-2658