(fwData): get/set a 4x4 Matrix from TranformationMatrix3D
Description
When using ::fwData::TransformationMatrix3D
we can only set or get the matrix as a linear array of 16 elements, or you need to set each value individualy.
it can be very easy to add new getter/setter from/to a std::array< std::array<double, 4> , 4 >
, this enforce coherence between the data and our ::fwMath
functions (matrix are represented by an array of array).
Proposal
Add new getter/setter along with unit tests.