Basic shape isolation by its hue
Searching for hull, contours and convexity points
Experimenting with finding objects
Removed duplicated functions, slightly changed shape extraction.
Showing very unaverage convexity points
Merge branch 'master' into shape_isolation

Conflicts:
	Image Analysis.xcodeproj/project.pbxproj
	src/App.cpp
Improved searching for fingers
Added Util class for common tasks
Added canvas enlarging