Load modules-enabled config files
Load modules-enabled config files

The nginx package was updated earlier this year to include
`modules-available` and `modules-enabled` directories in `/etc/nginx`.

This adds loading of conf files from modules-enabled to the top of
the trellis nginx.conf (in a new `modules_enabled` block).

kalenjohnson/trellis,roots/trellis,buluma/trellis,newtonne/trellis,proteusthemes/pt-ops,roots/trellis,partounian/trellis,newtonne/trellis,NicBeltramelli/trellis,pressbooks/trellis,cimocimocimo/cimo-wordpress-server,jeffstieler/bedrock-ansible,proteusthemes/pt-ops,buluma/trellis,partounian/trellis,Twansparant/trellis-db-sync,partounian/trellis,kalenjohnson/trellis,NicBeltramelli/trellis,roots/bedrock-ansible,NicBeltramelli/trellis,cimocimocimo/cimo-wordpress-server,pressbooks/trellis,Twansparant/trellis-db-sync,partounian/trellis,roots/bedrock-ansible,Twansparant/trellis-db-sync,cimocimocimo/cimo-wordpress-server,kalenjohnson/trellis,proteusthemes/pt-ops,newtonne/trellis,buluma/trellis,NicBeltramelli/trellis,jeffstieler/bedrock-ansible,Twansparant/trellis-db-sync,jeffstieler/bedrock-ansible,buluma/trellis,kalenjohnson/trellis,cimocimocimo/cimo-wordpress-server