add radar category data as flags to sdvx

[noahm]

refer to https://docs.google.com/spreadsheets/d/1pldBlet-MkDEHLXeEu1CqCwth8_rpRKVh64HFv1e8lU/edit

[kbh-exe]

These values are already provided per chart in the music_db.xml, it would just need to be added to the things pulled to the .json file by the import-sdvx.mjs, added to each of the charts, and then shown or used for manipulation with the chart filters.