Added a list of users for every plate. This will allow multiple users to have access
to one plate and to see which users are working on which plate.
Goes Towards #35, #36, #37, #38, #40
Adding Open/Close/All Projects Tab

User story #7
Fully implemented All/Open/Closed projects tab

Users can now select All/Open/Closed projects by selecting a tab.
I still need to create the tests in the backend for the new route
as well as tests for the front end...
Karma tests for All/Open/Closed project tab

Refer to https://docs.angularjs.org/api/ngMock/service/$httpBackend
about questions regarding why $httpBackend was used to test
the $http service call on
'http://localhost:3000/projectsByStatus/false' &
'http://localhost:3000/projectsByStatus/true'