Add Shape and Split operators

Context

Adds the following operators:

• Shape
  
• Split
  

Resolves Issue_13 and Issue_14
Resolves a part of Issue_70

Modified files

• Shape.hpp, Shape.cpp, pybind_Shape.cpp, Test_ShapeImpl.cpp add Shape Op
  
• Split.hpp, Split.cpp, pybind_Split.cpp, Test_SplitImpl.cpp add Split Op
  

TODO

• Shape
• Split