AutoBuffer::allocate(nsz) didn't work properly when
(sz < nsz < fixed_size). In this case sz remained unchanged.

CMake doesn't work with empty paths ("") or paths which contains "./"

change the `while` loop to check if the two windows created by this example still exist, stop the program otherwise

removed binary

update

CPack can't work with absolute paths.

opencv_ts is static internal library and in case of exporting
it requires all static dependencies (include HAL files)

Linker dependencies are transitive for non-private

Added python binding for createButton