[+] checking ccw contour for convex with tests
[+] checking contour for ccw orientation with tests
[+] convex ccw contour contains point (with tests)
[+] visualization for "checking contour for ccw orientation"
[+] visualization for "checking ccw contour for convex"
[+] visualization for "convex ccw contour contains point"
Merge branch 'add-algo'

Conflicts:
	examples/operations/CMakeLists.txt
	include/cg/operations/contains/contour_point.h
	include/cg/operations/convex.h
	include/cg/operations/orientation.h
	tests/contains.cpp
	tests/orientation.cpp