Improved documentation for neural network
Fixed bug #3489: The code assumed that two global variables would be constructed in a particular order, but global variable initialization order is compiler-dependent.
Merge pull request #2171 from djetter99:fix_static_init_order
split CUDA Hough sources
disable CUDA generalized Hough Transform
Merge pull request #2107 from nghiaho12:nn_doc
Merge pull request #2183 from jet47:cuda-hough-fix
All installed files marked with component names for install customization.
Initial Linux packages build rools for CPack.
Merge pull request #2181 from asmorkalov:ocv_packaging