Writting documentation on sorting.

Documentation/Examples/Algorithms/CMakeLists.txt

Documentation/Examples/Algorithms/SortingExample.cpp

Documentation/Examples/Algorithms/SortingExample.cu

Documentation/Examples/Algorithms/SortingExample2.cpp

Documentation/Examples/Algorithms/SortingExample2.cu

Documentation/Examples/Algorithms/SortingExample3.cpp

Documentation/Examples/Algorithms/SortingExample3.cu

Documentation/Tutorials/Sorting/tutorial_Sorting.md

Documentation/Tutorials/index.md

src/Benchmarks/Sorting/Measurer.h

src/Benchmarks/Sorting/generators.h

src/TNL/Algorithms/Sort.h

src/TNL/Algorithms/Sorting/BitonicSort.h

src/UnitTests/Algorithms/Sorting/BitonicSortTest.h

src/UnitTests/Algorithms/Sorting/QuicksortTest.h