Which also happens to align the non-Debian specific variables
with the ones used by upstream CMake.
(cherry picked from commit b8c60234c3fa94c31a3e2a72275fefa811c75d5c)
Conflicts:
cmake/OpenCVPackaging.cmake
They don't actually do anything. And even if they did, all components are
enabled by default, anyway.
(cherry picked from commit 49fe496914cca93f19dd61aa7b1c120037d65282)
Conflicts:
cmake/OpenCVPackaging.cmake
Env setup for testing package implemented using /etc/profile.d;
Variable with path for all native samples added;
Path for test binaries and test data updated.