Swapping to compressed memory by default

[Peter Oliver]

I just installed Fedora IoT edition for the first time, version 33, and was surprised that
by default there was no swap to compressed memory.  I understand that other Fedora
editions have been enabling this, and it seems like something that would be of particular
benefit to small devices with slow storage.

It was straightforward to enable this myself (rpm-ostree install zram-generator-defaults),
but I wondered if it was an oversight that this is not installed by default?