These fixes include:
- Adding a file for the configuration key and section names.
- Add some virtual destructors.
- Make interface config classes pure abstract and add implementation in derived class
  Note, this causes some really ugly casting.
  This has to be changed at some point.
- Add cloning function to simulation results.
  This was necessary due to the new hierarchy of simulation results.
- Minor bug fixes.

Static const strings cannot be passed over a dll border, functions can.
Thus the change to functions.