Separated create & other server actions in stacktach

* Seperated create server & other server actions in stacktach
fixture so that these can be used in compute bandwidth
tests also.
* Accordingly renamed the methods also
* Fixed the respective tests using these methods too.

Change-Id: Id8f6ece7682502487c4323959eb969b85dd3c0c6
Merge "Separated create & other server actions in stacktach"