Maybe cherry-pick:

Maybe cherry-pick:
- added mini-links JSF tags for product categories and generic products
- added form templates for above again
- added views for listing both again
- added navigation rules to faces-config.xml
- rewrote converter to CDI "lookup" (programatic) which finally let the
  converter work without any EJB calls
- added filtered list for categories and products
- added product unit amount and type, like 1 liter
- categories and products have now both i18n keys and not direct and
  untranslateable titles
- rewrote + sorted renderGenericProduct() as products now have i18n keys
- added menu entries

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