Fixed several recursive header issues, refactored Math lib, began implementing core mathematical functions as wrappers around stdmath, will implement SSE and lookup tables later.

include/J3ML/Geometry/Polygon.h

@@ -3,7 +3,7 @@
 #include <J3ML/Geometry/Common.h>
 #include <vector>
 #include "Shape.h"
-#include "J3ML/LinearAlgebra.h"
+#include <J3ML/LinearAlgebra/Common.h>
 
 namespace J3ML::Geometry {
 
@@ -13,7 +13,7 @@ namespace J3ML::Geometry {
         std::vector<Vector3> vertices;
 
         /// Quickly returns an arbitrary point inside this AABB. Used in GJK intersection test.
-        Vector3 AnyPointFast() const { return !vertices.empty() ? vertices[0] : Vector3::NaN; }
+        Vector3 AnyPointFast() const;
 
         AABB MinimalEnclosingAABB() const;
         int NumVertices() const;