Quiz Options Changes

Added quiz.options package. Added AssessFeedback class. Moved
AssessmentControl to quiz.options
Fixing conflicts
Began working on start & end date options

Added abstract class for Date. This will hopefully be used to create
start & end date classes which will extend Date.
Merge branch 'Test_Jason' of https://github.com/Team-One-GGC/D2L-Quiz-Creator into Test_Jason