Implement mainchain State Recovery Command execution

[mitsuaki-u]

Description

Add state recovery command execution to mainchain interoperability module.

let storeQueries be an empty array

for each entry in trs.params.storeEntries:
    # The recover function corresponding to the module ID applies the recovery logic
    route processing logic to the module given by trs.params.moduleID
    recover(trs.params.chainID, trs.params.moduleID, entry.storePrefix, entry.storeKey, entry.storeValue)
    if the previous call fails:
        execution fails and trs is invalid

    emptyStore = empty bytes # Define an empty store entry
    query = { key: entry.storekey,
              value: SHA-256(emptyStore),
              bitmap: entry.bitmap}
    push query to storeQueries

terminatedStateAccount(trs.params.chainID).stateRoot = SMTCalculateRoot(trs.params.siblingHashes, storeQueries)

Acceptance Criteria

• Add unit tests for execution command
• Import this class for use in sidechain interoperability module