message: Add PoolLedgerTimeout to iOS wrapper.
diff: @@ -93,6 +93,9 @@ typedef NS_ENUM(NSInteger, IndyErrorCode)
  // Attempt to create pool ledger config with name used for another existing pool
  PoolLedgerConfigAlreadyExistsError = 306,
  + // Timeout for action
  + PoolLedgerTimeout = 307,
  +
  // Revocation registry is full and creation of new registry is necessary
  AnoncredsRevocationRegistryFullError = 400,
  