Implement a staking squid

[marc-aurele-besner]

Implement a staking squid

For the staking section purpose

Tasks

Beta Give feedback

1. Init a new squid template for substate in indexers/ under 'staking-squid' subspace/astral#732
   enhancement indexer +2
   
2. Build the schema subspace/astral#734
   indexer +1
   
3. Update squid chain metadata for proper typegen subspace/astral#737
   indexer +1
   
4. Add processing logic to save new operator (registerOperator) subspace/astral#738
   indexer +1
   
5. Add processing logic to save new deposit (addFunds) subspace/astral#739
   indexer +1
   
6. Add processing logic to update operator on new deposit (addFunds) subspace/astral#761
   indexer +1
   
7. Add processing logic to save new withdraw #762
   indexer +1
   
8. Add processing logic to save new unlockFunds and unlockNominator subspace/astral#763
   indexer +1