Check Available Disk Space after packaging failure

[Holzhaus]

Is your feature request related to a problem? Please describe.
When the disk space runs full, builds will randomly fail. The error logs might not give a clear indication that low disk space is the cause of this failure. When using vcpkg to build dependencies on CI (e.g. GitHub Actions), the low disk space won't be apparent and might lead to people trying to debug the portfile unnecessarily.

Proposed solution
I would be helpful if vcpkg checked if the disk space is below a certain threshold (e.g. 10MB) and print a warning like "Disk space is low and might be the cause of this failure. Consider using the --clean-after-install flag."