scale generator: Add canonical data (#1156)
scale generator: Add canonical data (#1156)

I removed a couple inessential naming tests that the Python and Ruby
implementations had and a ginormous pile of overly-detailed tests the 
Elixir implementation had.

Other implementing tracks at the time: C#, F#.

close #583
jmluy/x-common,exercism/x-common,jmluy/x-common,exercism/x-common,ErikSchierboom/x-common,rpottsoh/x-common,petertseng/x-common,jmluy/x-common,rpottsoh/x-common,ErikSchierboom/x-common,petertseng/x-common