refactor/add TODO comment to getOtherBankAccountByNumber method for further understanding of external bank account handling

Author: hongwei1

obp-api/src/main/scala/code/bankconnectors/Connector.scala

@@ -532,6 +532,7 @@ trait Connector extends MdcLoggable {
 
   // This method handles external bank accounts that may not exist in our database.
   // If the account is not found, we create an in-memory account using counterparty information for payment processing.
+  //TODO understand more about this method.
   def getOtherBankAccountByNumber(bankId : Option[BankId], accountNumber : String, counterparty: Option[CounterpartyTrait], callContext: Option[CallContext]) : OBPReturnType[Box[(BankAccount)]] = Future {(Failure(setUnimplementedError(nameOf(getOtherBankAccountByNumber _))), callContext)}
 
   def getBankAccountByRoutings(bankAccountRoutings: BankAccountRoutings, callContext: Option[CallContext]) : OBPReturnType[Box[(BankAccount)]] = Future {(Failure(setUnimplementedError(nameOf(getBankAccountByRoutings _))), callContext)}