front-end dependencies handled through npm. DMPRoadmap/roadmap#551

moved assets from app/assets to lib/assets. The files in lib/assets will be used by Rails unless override by an equivalent file in app/assets. Added logic to applicationController so that it will look first for a template in app/views/[:branded folder name] before using the default in app/views

Created DMPRoadmap logo and swapped out JISC logo for UC3 logo.