Capture mesh-catalog at feat/r4g (2246ccc4) with the templates its manifests name and its predefined.json, and lay the copy out as a repository's root

The catalogue's manifests moved their content into template files and fall back to predefined keys, so a copy of
module.json alone no longer passes the catalogue's own check; the bus's Dockerfile is gone from the catalogue.

testdata/beside/mesh-catalog/modules/localization/files/locale.conf

@@ -0,0 +1,3 @@
+# The mesh's (module localization, novox/hq to-be 42): the system locale. Written whole at every
+# push; an edit here is overwritten. Read at the next login.
+LANG=en_US.UTF-8

testdata/beside/mesh-catalog/modules/localization/files/vconsole.conf

@@ -0,0 +1,3 @@
+# The mesh's (module localization, novox/hq to-be 42): the console keymap. Written whole at every
+# push; an edit here is overwritten. Read at the next boot.
+KEYMAP=us

testdata/beside/mesh-catalog/modules/localization/module.json.captured

@@ -16,14 +16,14 @@
       "type": "file",
       "path": "/etc/locale.conf",
       "mode": "0644",
-      "content": "# The mesh's (module localization, novox/hq to-be 42): the system locale. Written whole at every\n# push; an edit here is overwritten. Read at the next login.\nLANG=en_US.UTF-8\n"
+      "template": "files/locale.conf"
     },
     {
       "id": "keymap",
       "type": "file",
       "path": "/etc/vconsole.conf",
       "mode": "0644",
-      "content": "# The mesh's (module localization, novox/hq to-be 42): the console keymap. Written whole at every\n# push; an edit here is overwritten. Read at the next boot.\nKEYMAP=us\n"
+      "template": "files/vconsole.conf"
     },
     {
       "id": "time-zone",
@@ -50,6 +50,11 @@
         "loads": [
           "localization-tools"
         ]
+      },
+      {
+        "name": "files",
+        "kind": "archive",
+        "from": "files"
       }
     ]
   }