US 02.04.02: Make infrastructure for displaying the sorted view

[waridh]

Make infrastructure for displaying sorted view

Plan

• The adapter should hold a list that is a subset of the main list. This list should be mutable in such a way that allows sorting and filtering to work.

• Going to make this list a class since it needs to service both sort and filter.

• [x] #139

• [ ] #142

[waridh]

This issue has been completed. The sorting is functional.