SSB-44: bug fixes and first implementation of the gains solutions

.gitattributes

CAL/CalibrationCommon/lib/datacontainers/__init__.py

CAL/CalibrationProcessing/lib/CMakeLists.txt

CAL/CalibrationProcessing/lib/processing/__init__.py

CAL/CalibrationProcessing/lib/processing/averaging.py

CAL/CalibrationProcessing/lib/processing/matrices.py

CAL/CalibrationProcessing/lib/processing/normalize.py

CAL/CalibrationProcessing/lib/processing/solver.py

CAL/CalibrationProcessing/test/CMakeLists.txt

CAL/CalibrationProcessing/test/__init__.py

CAL/CalibrationProcessing/test/processing/CMakeLists.txt

CAL/CalibrationProcessing/test/processing/t_processing.py

CAL/CalibrationProcessing/test/processing/t_processing.run

CAL/CalibrationProcessing/test/processing/t_processing.sh

CAL/CalibrationProcessing/test/profiling_processing.py

CAL/CalibrationProcessing/test/test_utils.py

CAL/CalibrationProcessing/test/utils.py