[FEATURE] optionally render the session type

[MikkCZ]

As a conference organizer, I would like to be able to render the session type (talk, workshop, ...) in the schedule, so the event visitors know not all sessions are the same type (i.e. regular talk).

[MikkCZ]

The current workaround would be to have other types in a separate track for different color coding, to get a quick visual difference.

[rixx]

Session types are mostly intended for internal organisation and to give organisers a handy way to have default durations. For this reason, and for the added visual clutter, I doubt we will add session type display to the schedule any time soon.