Add outline for Quickhull algorithm

Mostly comments for now

Makefile

@@ -18,5 +18,7 @@ Display.o: Display.h
 
 Timing.o: Timing.h
 
+Quickhull.o: Quickhull.h
+
 clean :
 	-rm *.o quickhull

Quickhull.cpp

@@ -0,0 +1,26 @@
+
+#include "Quickhull.h"
+
+void Quickhull::get_hull(std::vector<Point> &input, std::vector<Point> &output) 
+{
+    // Get leftmost and rightmost point
+    // Add them to the output.
+
+    // Create a line from leftmost to rightmost
+
+    // Sort points between left and right of that line
+
+    // Call get_hull_with_line with the left points, as well as with the right points, and the line
+}
+
+void Quickhull::get_hull_with_line(std::vector<Point> &input, std::vector<Point> &output, Point, Point) 
+{
+    // If the input vector is empty, we're done
+
+    // Find the point which is furthest away from the line, add it to the output
+
+    // Build a triangle with these 3 points
+    // Remove points inside this triangle
+
+    // Recursively call get_hull_with_line for each side of the triangle
+}

Quickhull.h

@@ -0,0 +1,14 @@
+#pragma once
+
+#include <vector>
+
+#include "Point.h"
+
+class Quickhull
+{
+public:
+    static void get_hull(std::vector<Point> &, std::vector<Point> &);
+
+private:
+    static void get_hull_with_line(std::vector<Point> &, std::vector<Point> &, Point, Point);
+};