Add Rivvik's Kerbalgelion small Flag set from Kerbal Stuff

This pull request was automatically generated by Kerbal Stuff on behalf of Rivvik, to add [Rivvik's Kerbalgelion small Flag set](https://kerbalstuff.com/mod/454/Rivvik%27s%20Kerbalgelion%20small%20Flag%20set) to CKAN.

Please direct questions about this pull request to [Rivvik](https://kerbalstuff.com/profile/Rivvik).