Refactor(build-clan): rename to lib/modules

This is a preparation for moving everything into clan, to make it all one module evaluation

lib/modules/machineModules/forName.nix

@@ -0,0 +1,29 @@
+{
+  name,
+  directory,
+  meta,
+}:
+{
+  _class,
+  lib,
+  ...
+}:
+{
+  imports = builtins.filter builtins.pathExists (
+    [
+      "${directory}/machines/${name}/configuration.nix"
+    ]
+    ++ lib.optionals (_class == "nixos") [
+      "${directory}/machines/${name}/hardware-configuration.nix"
+      "${directory}/machines/${name}/disko.nix"
+    ]
+  );
+
+  clan.core.settings = {
+    inherit (meta) name icon;
+    inherit directory;
+    machine = {
+      inherit name;
+    };
+  };
+}