Add test cases for Tiny containers
Split check-tiny-*-container test case and add some new tests:
- basic functionality
- folder mapping
- device mapping
- AppArmor enforcement
- AppArmot connectivity profile
- custom seccomp policy
Test: https://lava.collabora.co.uk/scheduler/job/1525149 (aa_embedded* were failed since tarball not includes bin.dbus-daemon aa profile yet)