removed the filterSpeckles, getValidDisparityROI, validateDisparities functions and added the calib3d module in the dependency

repaired the unsuccesfull builds

removed the c api

removed the filterSpecleImpl

This files contains the implemented descriptors
The #pragma have been commented they will have to be replaced by open cv parallel for
Other files will follow

fixed the warnings

renamed the type casting

uncommented the unused macro

replaced type casting with void and removed macro

removed trailing white spaces

removed the kernel size as class member and added it to the function header

removed warning sources

Rename Descriptor.cpp to descriptor.cpp

renamed file

Rename Descriptor.hpp to descriptor.hpp

renamed hpp

modified the header of header of the functions adding the Mat type for images

Combined descriptors that belong in the same class together

removed white spaces