Add fedmenu to the resultsdb_frontend template.
    
    Summary:
    This adds fedmenu to the resultsdb_frontend.
    
    - You can view a demo of fedmenu here:  http://threebean.org/fedmenu
    - Or see our progress on adding apps to it here:  https://fedoraproject.org/wiki/Infrastructure/FY16_frontend
    - There is an open discussion on its experience for users here:  https://fedorahosted.org/design-team/ticket/374
    
    Test Plan: Open up the app and see that fedmenu renders correctly on the page.
    
    Reviewers: jskladan, tflink
    
    Reviewed By: jskladan, tflink
    
    Subscribers: tflink
    
    Differential Revision: https://phab.qadevel.cloud.fedoraproject.org/D363