links with CUDA driver library only if we use video encoding/decoding

CMake 2.8.11 removed linkage with CUDA driver library,
but it's used by gpu video encoding/decoding

command line option '-Wsign-promo' is valid for C++/ObjC++ but not for C [enabled by default]

* disabled warnings from thrust
* fixed warnings from ts_gtest.h
* possibly fixed superres compilation in Debug mode on Windows

- added CMake toolchain file
- added WITH_NVCUVID flag

- fixed printCudaDeviceInfo for new CC
- fixed some compilation errors and warnings
- removed unset command from CMake script
- removed unused std imports

Suppressed hundreds of useless MSVC warnings (can be reenabled setting cmake variable ENABLE_NOISY_WARNINGS to ON). Fixed some of remaining warnings.