Recommended changes from review of #1568

- Make Resources an `interface{}` to support arbitrary yaml
- Remove `wwctl resource` as incompatible with arbitrary yaml
- Revert changes to host overlay templates
- Remove NFS mount options from warewulf.conf
- Replace NFS support / resource prefix with "fstab" resource
- Move resources to profiles
- Migrate warewulf.conf mounts to nodes.conf with `wwctl upgrade`
- Add documentation

Signed-off-by: Jonathon Anderson <janderson@ciq.com>

go.mod

@@ -19,6 +19,7 @@ require (
 	github.com/grpc-ecosystem/grpc-gateway/v2 v2.23.0
 	github.com/hashicorp/go-version v1.7.0
 	github.com/manifoldco/promptui v0.9.0
+	github.com/mohae/deepcopy v0.0.0-20170929034955-c48cc78d4826
 	github.com/opencontainers/image-spec v1.1.0
 	github.com/opencontainers/umoci v0.4.7
 	github.com/pkg/errors v0.9.1