core: s/pack/archived/

This completes the rename from the previous commit.

src/libostree/ostree-repo.h

@@ -76,12 +76,12 @@ GFile *       ostree_repo_get_object_path (OstreeRepo   *self,
                                            const char   *object,
                                            OstreeObjectType type);
 
-gboolean      ostree_repo_store_packfile (OstreeRepo       *self,
-                                           const char       *expected_checksum,
-                                           const char       *path,
-                                           OstreeObjectType  objtype,
-                                           gboolean         *did_exist,
-                                           GError          **error);
+gboolean      ostree_repo_store_archived_file (OstreeRepo       *self,
+                                               const char       *expected_checksum,
+                                               const char       *path,
+                                               OstreeObjectType  objtype,
+                                               gboolean         *did_exist,
+                                               GError          **error);
 
 gboolean      ostree_repo_store_object_trusted (OstreeRepo   *self,
                                                 GFile        *file,