Merge tier-1 to the toplevel

Now we just have a minimal base, and what was tier-1 is now
just the default content.

We still do capture the previous conception of "tier-x" in
`packages-recommended-minimal.txt` so that people starting
from scratch can install using that.

Signed-off-by: Colin Walters <walters@verbum.org>

usr/lib/systemd/system-preset/05-bootc.preset

@@ -0,0 +1,7 @@
+# Our fallback
+enable bootc-generic-growpart.service
+
+# We enable this by default just so we can say we have automatic
+# updates on by default, like CoreOS. It's very much intended
+# to be tweaked or replaced outside of trivial scenarios though.
+enable bootc-fetch-apply-updates.timer

usr/lib/systemd/system/bootc-generic-growpart.service

@@ -0,0 +1,22 @@
+[Unit]
+Description=Bootc Fallback Root Filesystem Grow
+Documentation=https://gitlab.com/fedora/bootc/docs
+# For now we skip bare metal cases, and we also have nothing to do
+# for containers.
+ConditionVirtualization=vm
+# This helps verify that we're running in a bootc/ostree based target.
+ConditionPathIsMountPoint=/sysroot
+# For someone making a smaller image, assume they have this handled.
+ConditionPathExists=/usr/bin/growpart
+# We want to run before any e.g. large container images might be pulled.
+DefaultDependencies=no
+Requires=sysinit.target
+After=sysinit.target
+Before=basic.target
+
+[Service]
+ExecStart=/usr/libexec/bootc-generic-growpart
+# So we can temporarily remount the sysroot writable
+MountFlags=slave
+# Just to auto-cleanup our temporary files
+PrivateTmp=yes