Quizzes, NGC, RUSD and i18n Implementation

NGC partner banner image changed
Quizzes UI implementation in Community library
Merge remote-tracking branch 'upstream/dev-branch' into dev-branch
Disabled standards tab when logged in from RUSD library page
i18n implemented for the collection/quiz in Library Topic List View
Separated RUSD and Community Library API calls.
Merge remote-tracking branch 'upstream/dev-branch' into dev-branch
Fixed "essential questions block is displayed below the big ideas"