Clean up Configuration File mess. Closes #18

in this merge request I extracted the ConfigurationFile from VirtualFluidsCPU to basics/config and removed all the other version of configuration files from it. Furthermore I changed the way of reading the config entries in VirtualFluidsGPU/Parameter.cpp.

Besides many small clean ups and stuff.

CMakePresets.json

 {
-    "version": 1,
+    "version": 2,
     "cmakeMinimumRequired": {
         "major": 3,
         "minor": 19,