Evaluate freezable APT repo's storage needs
This should be done for two different hypotheses:
- if we import only the packages we need;
- if we import the entire APT suites we fetch packages from.
In both cases, source packages must be taken into account.
Parent Task: #9400 (closed)
Related issues
- Related to #9487 (closed)
- Related to #6303 (closed)
Original created by @intrigeri on 9508 (Redmine)