Extends the functionalities of Resize Operator

Context

issue : aidge#181 (closed)

/!\ This operator is a temporary working solution. It should be optimized.

Many options have been introduced and are not yet fully supported.

Modified files

• Tensor.hpp
• interpolation.hpp/cpp
• Resize.hpp/cpp

Detailed major modifications

• add interpolation.hpp, interpolation.cpp files to gather some interpolation features
• add Resize.hpp and Resize.cpp
• add static functions Tensor::toIndex() and Tensor::toCoord to convert coortinates to a flat index and conversly

TODO

• Simplify the structure of interpolation, remove Interpolation::retrieveNeighbours
• Handle ROI
• Seperate interpolation 'mode' and 'nearest_mode' that are merged in Interpolation::Mode