Reworked Newsimulation:
- fixed: all creatures use carnivore defaults
- fixed: sim.terragen.species is now respected
- fixed: don't allow multiple species with same name
- fixed: don't overwrite default values with values from last selected Species.cpp
- fixed: last selected creature will be saved when Ok/New is clicked
- added: select the type of new species
- added: create random creatures ( currently only optimalTemperature is random )