Specify variants for tvb-storage and tvb-framework spec.

requested review from @akarmas

assigned to @paulapopa

merged

mentioned in commit 1798a486

mentioned in merge request !8 (merged)

It should be OK in lab-int! Please check it.

Thanks, I have checked the packages and they are ok. Some features of tvb-framework cannot be used due to missing spack packages for some of our dependencies. I will provide spack packaging for those dependencies as well, soon.