WIP: Resolve "Document recommend selectors for getting ordered lists"

What I did

• Implemented new sort selector method getSortedByProp
• Implement advanced sort data types, E.g., Dates
• Memoize sort selectors with reselect
• Add sort reducers sortBy and sortDuration
• Add sort action creators for SET_SORT
• Document in storybook with usage examples
• Add usage examples for managing externally driven sort orders & selector derived sort orders
• Add automated tests for the new selectors, reducers, actions

Implications

None

How to test

• Start yarn storybook and open in your browser
• Open the Selectors -> Sorting story
• Ensure the documentation makes sense
• Use yarn link to link your development version to an existing project
• Implement a few selectors and test the results

Depends !5 (merged) Closes #11