The policy list now also fetches scan execution policies and displays
them along with network policies.
This also renames a few things to better reflect the fact that we no
longer display network policies only.
The specs have been reorganized and cleaned up to make sure we only test
relevant things, that no test-cases are duplicated, and that we only
create a single wrapper per test case. We also now mount shallow
wrappers when a full mount isn't necessary.

Changelog: added
EE: true