Address cmake warning on policy CMP0076
CMake Warning (dev) at Source/Python/CMakeLists.txt:23 (target_sources): Policy CMP0076 is not set: target_sources() command converts relative paths to absolute. Run "cmake --help-policy CMP0076" for policy details. Use the cmake_policy command to set the policy and suppress this warning.
An interface source of target "dpsim_python" has a relative path. This warning is for project developers. Use -Wno-dev to suppress it.