Expand patch_apply tests

src/snapshot/tests/snapshots/apply__remove_property_initial.snap

@@ -0,0 +1,16 @@
+---
+source: src/snapshot/tests/apply.rs
+expression: tree_value
+---
+id: id-1
+name: ROOT
+class_name: ROOT
+properties:
+  Foo:
+    Type: String
+    Value: Should be removed
+metadata:
+  ignore_unknown_instances: false
+  source_path: ~
+  project_node: ~
+children: []