www/sogo: Convert to FLAVORS
- devel/sope: Convert to sope-pgsql and sope-mysql flavors
- www/sogo: Convert to sogo-mysql, sogo-mysqlactivesync, sogo-pgsql, sogo-pgsqlactivesync flavors
- Bump PORTREVISION
Reported by: kiwi
Differential Revision: https://reviews.freebsd.org/D49056