Added 'Protobuf Decode', 'VarInt Decode' and 'VarInt Encode' operations

src/core/config/Categories.json

@@ -169,6 +169,9 @@
             "Parse URI",
             "URL Encode",
             "URL Decode",
+            "Protobuf Decode",
+            "VarInt Encode",
+            "VarInt Decode",
             "Format MAC addresses",
             "Change IP format",
             "Group IP addresses",