Add indexation AssetId -> (ContractId, SubId)

[xgreenx]

Definition of done

GraphQL provides a new endpoint that returns information about the asset like:

• SubId
• ContractId
• Total amount in the network

Implementation details

First, we need to add a new indexation table into the off-chain database.

If the off chain worker sees Mint or Burn receipt, it indexes the information about sub id, contract id and updates total amount.