Also remove all usages of std::complex from OpenCV modules

Made all STL usages explicit to be able automatically find all usages of
particular class or function.

remove as much warnings as possible
use enum instead of MACRO for ocl.hpp
add command line parser in accuracy test and perf test
some bug fix for arthim functions

change the download channels to oclchannles()
fix bugs of arithm functions
perf fix of bilateral
bug fix of split test case
add build_warps functions