Change the licence by LGPL and CeCILL-C in all files

Src/Arranger/FOctreeArranger.hpp

Src/Arranger/FOctreeArrangerProc.hpp

Src/Components/FAbstractCell.hpp

Src/Components/FAbstractKernels.hpp

Src/Components/FAbstractLeaf.hpp

Src/Components/FAbstractParticle.hpp

Src/Components/FAbstractSendable.hpp

Src/Components/FAbstractSerializable.hpp

Src/Components/FBasicCell.hpp

Src/Components/FBasicKernels.hpp

Src/Components/FBasicParticle.hpp

Src/Components/FFmaParticle.hpp

Src/Components/FSimpleLeaf.hpp

Src/Components/FTestCell.hpp

Src/Components/FTestKernels.hpp

Src/Components/FTestParticle.hpp

Src/Components/FTypedLeaf.hpp

Src/Containers/FBoolArray.hpp

Src/Containers/FBufferReader.hpp

Src/Containers/FBufferWriter.hpp