ciao-controller: add test of listFlavorsDetails
ciao-controller: add test of listFlavorsDetails

The function listFlavorsDetails didn't unit testing for code coverage,
this commit includes only the code coverage for the happy path.
The listFlavorsDetails method servers the api method call to describe
the details for all flavors existent of a given tenant

Fixes #349

Signed-off-by: Leoswaldo Macias <05c4524902e7298234f62a8fe39e02320d0ad65b@intel.com>

jorgevgut/ciao,obedmr/ciao,rbradford/ciao,jorgevgut/ciao,mrkz/ciao,wcwxyz/ciao,leoswaldo/ciao,mrkz/ciao,erick0z/ciao,01org/ciao,mcastelino/ciao,ciao-project/ciao,wcwxyz/ciao,rbradford/ciao,mcastelino/ciao,matthewrsj/ciao,erick0z/ciao,kaccardi/ciao,leoswaldo/ciao,obedmr/ciao,wcwxyz/ciao,erick0z/ciao,matthewrsj/ciao,markdryan/ciao,01org/ciao,markdryan/ciao,matthewrsj/ciao,tpepper/ciao,leoswaldo/ciao,jorgevgut/ciao,tpepper/ciao,mrkz/ciao,obedmr/ciao,mcastelino/ciao,ciao-project/ciao,tpepper/ciao,kaccardi/ciao