Investigate enum support in Zerobus to simplify "datagen"

[newfront]

Currently, spark will automatically cast an enum to a StringType, this is due to the lack of enumeration support within Spark and in our case, Delta Lake. There is an option for enums_as_ints.

deserialized_df = df.select(from_protobuf(
    df["protobuf_data"],
    messageName=message_name,
    descFilePath=descriptor_path,
    options={"enums.as.ints": "True"} 
).alias("person_data"))

If this works inside of the spark engine then we need to figure out if that option is also available as a table property for a zerobus table.