[interfacegridcreator]

  - added functionality and properties to refine grid in all directions
  - naming (comp -> dimIdx)

[multidomain]
  - adapted to changes in the interfacegridcreator
  - removed unused properties from input file
  - in coupled zeroeq problem added output at beginning of simulations

[freeflow]
  - removed one unused property from test_zeroeq2c.input

reviewed by timok



git-svn-id: svn://svn.iws.uni-stuttgart.de/DUMUX/dumux/trunk@15341 2fb0f335-1f38-0410-981e-8018bf24f1b0