drawMatches python bindings
SIFT+SURF PyDocs
feature2d drawing functions PyDocs
PyDocs for FAST, ORB etc
PyDocs for common interface of feature2d
added stub library for cudev module

in order to make CMake scripts work properly
Merge pull request #1101 from jet47:cudev-stub-lib
Merge pull request #1107 from abidrahmank:master