libconfig: FindLibconfig for libconfig++.so and no more liblibconfig++.so,...

libconfig: FindLibconfig for libconfig++.so and no more liblibconfig++.so, conda package from conda-forge and no more esrf-bcu neither bcu-ci/stable
7 jobs for ctsaving-issues-and-refactoring in 23 minutes and 54 seconds (queued for 2 seconds)