Merge branch 'JK/hypre' into 'develop'

Documentation/Doxyfile

Documentation/Pages/main-page.md

cmake/FindHypre.cmake

src/Examples/CMakeLists.txt

src/Examples/Hypre/CMakeLists.txt

src/Examples/Hypre/ex.h

src/Examples/Hypre/glvis-ex5.sh

src/Examples/Hypre/hypre-ex5.c

src/Examples/Hypre/tnl-hypre-ex5.cpp

src/Examples/Hypre/verify-ex5.sh

src/Examples/Hypre/vis.c

src/TNL/Algorithms/Segments/CSRView.h

src/TNL/Containers/Array.hpp

src/TNL/Containers/ArrayView.hpp

src/TNL/Containers/DistributedArray.h

src/TNL/Containers/DistributedArray.hpp

src/TNL/Containers/DistributedArrayView.h

src/TNL/Containers/DistributedArrayView.hpp

src/TNL/Containers/HypreParVector.h

src/TNL/Containers/HypreVector.h