Add fastapi getelementproperties

tjnetwork.py

@@ -409,6 +409,15 @@ def get_link_properties(name: str, link_id: str) -> dict[str, Any]:
     elif api.is_valve(name, link_id):
         return api.get_valve(name, link_id)
 
+# type can be 'node' or 'link'
+def get_element_properties(name: str, type: str, element_id: str) -> dict[str, Any]:
+    if type == 'node':
+        return get_node_properties(name, element_id)
+    elif type == 'link':
+        return get_link_properties(name, element_id)
+    else:
+        return {}
+
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 # title 1.[TITLE]
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