- neither class names, nor the typedefs for the <face> and <triFace>
    instances are really decided

 - useful when the baseType isn't a typedef and thus requires the same
   template argument as the derived class

 - useful for avoiding links on older versions, or for 'hiding' contents

  - add static/protected member function subsections
  - static members up front, constructors/destructors next
    private/protected/public members next

- read 'ftr' triSurface format
- added 'ofs' (OpenFOAM Surface) as new all-in-one surface format candidate
- trying to get some sanity into the surface patch classes, but called it
  'surfGroup' (for now) to avoid conflict with existing 'surfacePatch'
- add read() member like Mattijs suggested

porousZone constructor in the same order as sampling