fix crash when path has spaces
The paths are defined properly with an escape "\ " but you cannot have an escape and
quotes when piping (otherwise, escapes are understood as 2 characters).
So just remove the quotes.
fix the crash as suggested by @SpecLad
add VERBATIM as advised by @SpecLad
added CV_16SC2 && CV_16UC1 maps support to ocl::remap (nearest neighbour only)
Merge pull request #1737 from vrabaud:2.4
Merge pull request #1760 from ilya-lavrenov:ocl_remap_nn