sort method is added for trianglulate
Trianglulate init
Build Success.
sort is working.
but, trianglulate doesn't work
Deque resize() added.
It works.
deque_idx.resize(*3)
clean code
Point3
	x,y,z to public.

Trianglulate
	CircumCircle -> IsPointInCircle
Point
	x,y,z public
Matrix = operator is added.
Point * / operator error is fixed.
Point << >> operator error is fixed.
re commit
registration is added
Merge branch 'master' of https://github.com/wonjin/libMath

Conflicts:
	Deque/Deque.h