[io4] RotMatrix: minor improvements ()

Base/Vector/RotMatrix.cpp

Base/Vector/RotMatrix.h

Device/Detector/IDetector.cpp

Sample/Scattering/Rotations.cpp

Sim/Export/SampleToPython.cpp

Sim/Simulation/ISimulation2D.cpp

Tests/Functional/Suite/MakeSimulations.cpp

Tests/Unit/Base/RotMatrixTest.cpp

Tests/Unit/Sample/LatticeTest.cpp

auto/Wrap/doxygenBase.i

auto/Wrap/libBornAgainBase.py

auto/Wrap/libBornAgainBase_wrap.cpp