Added cli tool

cli.py

@@ -0,0 +1,23 @@
+#! /usr/bin/env python3
+from sys import argv
+from convert import convert_dhl, convert_hermes
+
+
+if __name__ == "__main__":
+    if len(argv) != 3:
+        print("Usage:")
+        print("./cli.py <method> <id>")
+        print("Method can be 'hermes' or 'dhl'")
+        exit(1)
+    
+    method = argv[1]
+    id = argv[2]
+
+    match method:
+        case "dhl":
+            convert_dhl(id)
+        case "hermes":
+            convert_hermes(id)
+        case _:
+            print("Unknown method")
+