Please cherry-pick:

Please cherry-pick:
- renamed companyDataId -> basicDataId (already done in underlaying entity)
- implemented addBranchOffice() which will call newly added private methods to
  create a BranchOffice instance and validate if the address is already found
  in an other bean's cache
- for this, allBranchOffices() needs to be published in interface
- implemented afterBranchOfficeAddedEvent() event observer which will add the
  newly added branch office to the backing bean's cache
- now displaying link to company's website correctly or, if not provided, a
  replacement message
- same with email link, maybe one day I move this out to a custom JSF tag?
- added missing i18n strings
- generalized duplicate i18n strings
- added missing navigation cases

Signed-off-by: Roland Häder <roland@mxchange.org>