OpenCV C/C++/OCL/CUDA samples install path fixed. Install rools for tests added.
(cherry picked from commit f332cba14b2a86017e1d2081130db110c2048c00)
Code review notes fixed.

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.
(cherry picked from commit 39201e68e2649955f40936a1d07f2d1c64c560f5)