1]. Made changes in getting ECMP route info and tap interface list.

1]. Made changes in getting ECMP route info and tap interface list.
2]. Getting the SI list for multi-inline SVC cases.
3]. Added expectation flag for file transfer tests.
4]. Need to pass the dst VM for the ECMP Route info.
5]. Added a traffic test case for multi-inline SVC.
6]. Added sanity tag for AAP test case.
7]. Changing the VM state-check logic in ECMP serial scripts.