Generate watcher for MobyMask contract and test events

[nikugogoi]

• Contract from https://github.com/danfinlay/MobyMask
• https://etherscan.io/address/0xb06e6db9288324738f04fcaac910f5a60102c1f8

• Generate watcher
• Deploy contract and test events locally
  • Remove using Github PAT for setup.
  • Generate signed invocations locally and test with mobymask-watcher.
  • Run webapp locally and check for other eth_calls/functionality.
• Check with mainnet data
  • Setup mobymask-watcher on remote server
  • Parse batched transactions for mobymask mainnet events
  • Add CLI for indexing blocks out of order
  • Run eth-statediff-service with remote leveldb-ethdb-rpc for mainnet data
  • Run with snap synced Geth node
  • Implement getStorage GQL query in watcher to return previously indexed data for old missing blocks