[functions.interfaces] extended generator macros * a bit of white space, so my had will wrap around   this more easily * added possibility to iterate DomainFieldType and   RangeFieldType separately
[functions.interfaces] extended generator macros
* a bit of white space, so my had will wrap around
  this more easily
* added possibility to iterate DomainFieldType and
  RangeFieldType separately

renemilk/DUNE-Stuff,renemilk/DUNE-Stuff,renemilk/DUNE-Stuff