MusikataExerciseRunner stubs
getting intro slides to render, added MusikataExerciseRunnerModel
stub for NavigationView
moved navigation coordination responsibilities to runner
added ButtonView, NavigationView start
added eventId
added progress view
fixing progress model/view
filling in navigation logic
outro view stub
stubs for OutroView dispatch
manual submission nav draft
refactor manual submission test
nav mediation for slides
fixed event name change for primaryDeck:completed event