fix cppcheck warning, fix not building examples when cimpp as submodule, make DP_Circuits.cpp nicer
make Solver constructor initialize mSLog in initializer list
cmake: Change BUILD_EXAMPLES to DPSIM_BUILD_EXAMPLES to avoid cimpp to overwrite this variable
examples: make DP_Circuits.cpp use new CommandLineArgs class features
Signed-off-by: Niklas Eiling niklas.eiling@eonerc.rwth-aachen.de