Using muranoclient for obtain package list
Using muranoclient for obtain package list

Fixes incorrect logic of get_list_packages function in tests.
Now for obtaining package list in tests will be used muranoclient
instead of requests library.

Change-Id: I215937cd058adb66ac6e573601490791dad5eb4a
Closes-Bug: #1458646

mcloudv/fuel-ostf,eayunstack/fuel-ostf,stackforge/fuel-ostf,eayunstack/fuel-ostf,mcloudv/fuel-ostf,stackforge/fuel-ostf