created odometer class to track run stats
updated pace formatter class
created time interval formatter class
created distance formatter class
implemented new time interval formatter in pace formatter class
connected elapsed time to dashboard
connected completed distance to dashboard
connected average pace to dashboard
refactored pace in run completed view controller
implemented new time interval formatter in run completed view controller
added displayUnits boolean to pace formatter method signature
implemented displayUnits method to fix dashboard pace
implemented new distance formatter in run view controller
implement displayUnits method for completed distance on dashboard
updated default dashboard values in storyboard
set progress bar value