Set up branding for ForeSITE projects using rbranding package

[apulsipher]

We need to deploy the rbranding package in all our sites and packages. This is a preliminary list of R packages that need to be addressed:

• epiworldR UofUEpiBio/epiworldR
• epiworldRShiny UofUEpiBio/epiworldRShiny
• measles UofUEpiBio/measles
• multigroup.vaccine EpiForeSITE/multigroup-vaccine
• rbranding EpiForeSITE/rbranding
• epitraxr EpiForeSITE/epitraxr
• facilityepimath EpiForeSITE/facilityepimath
• epiworldRcalibrate
• linkeR EpiForeSITE/linker

Further pages TBD.