Add a real High Scores screen.

(cherry picked from commit 4c5bfa5e0eb351a0d90c70413a7cd8622007d188)
High Scores tweak

(cherry picked from commit fa4e5efb5b0d8dcd73ed3e43d993d7e98b73e347)
Fix eval summary, summary branches

+ Fixed ScreenGameplay StepsDisplay errors
+ Fixed ScreenSelectCourse CourseContentsList masks
+ Fixed ScreenEvaluationSummary banners -- introduced a scroller.
+ Fixed showing ScreenEvaluationSummary showing after a course

(cherry picked from commit 04f7373238410c481cb79c6441fb27c55c69a447)
include IsCourse(), fix StageDisplay for courses!

(cherry picked from commit 56003157f77be78bd5ab9e608b1f3836cf288e08)
Reverted some changes that should not have been part of the merge from Midiman.
Art Pass #1