Refactor snapshot attribute handling in patch computation

- Removed redundant Rojo reference attributes from snapshot comparisons to prevent spurious diffs during VFS events.
- Updated the logic for interned instance additions to ensure deterministic ordering by redacted parent and name.

These changes aim to improve the accuracy of snapshot comparisons and enhance the handling of interned instances.

rojo-test/serve-test-snapshots/end_to_end__tests__serve__ref_path_change_target_patch.snap

@@ -12,10 +12,6 @@ body:
           changedMetadata: ~
           changedName: ~
           changedProperties:
-            Attributes:
-              "!Attributes":
-                Rojo_Ref_PrimaryPart:
-                  "!String": "@self/OtherPart"
             PrimaryPart:
               "!Ref": id-4
           id: id-3

rojo-test/serve-test-snapshots/end_to_end__tests__serve__ref_path_multiple_attrs_patch.snap

@@ -12,12 +12,6 @@ body:
           changedMetadata: ~
           changedName: ~
           changedProperties:
-            Attributes:
-              "!Attributes":
-                Rojo_Ref_CustomRef:
-                  "!String": "@self/OtherPart"
-                Rojo_Ref_PrimaryPart:
-                  "!String": "@self/Target"
             CustomRef:
               "!Ref": id-4
           id: id-3

rojo-test/serve-test-snapshots/end_to_end__tests__serve__ref_path_new_file_patch.snap

@@ -20,15 +20,6 @@ body:
             Value:
               "!Ref": id-5
       removed: []
-      updated:
-        - changedClassName: ~
-          changedMetadata: ~
-          changedName: ~
-          changedProperties:
-            Attributes:
-              "!Attributes":
-                Rojo_Ref_PrimaryPart:
-                  "!String": "@self/Target"
-          id: id-3
+      updated: []
 packetType: messages
 sessionId: id-1

rojo-test/serve-test-snapshots/end_to_end__tests__serve__ref_path_nonexistent_patch.snap

@@ -12,10 +12,6 @@ body:
           changedMetadata: ~
           changedName: ~
           changedProperties:
-            Attributes:
-              "!Attributes":
-                Rojo_Ref_PrimaryPart:
-                  "!String": "./NonExistent/Part"
             PrimaryPart: ~
           id: id-3
 packetType: messages

rojo-test/serve-test-snapshots/end_to_end__tests__serve__ref_properties_patch_update_subscribe.snap

@@ -12,10 +12,6 @@ body:
           changedMetadata: ~
           changedName: ~
           changedProperties:
-            Attributes:
-              "!Attributes":
-                Rojo_Target_PrimaryPart:
-                  "!String": model target
             Scale:
               "!Float32": 1
           id: id-8