Header include fixes and implementation of more unit tests.

include/J3ML/Geometry.h

@@ -2,7 +2,7 @@
 
 #pragma once
 
-#include <J3ML/Geometry/AABB2D.h>
+#include <J3ML/Geometry/AABB2D.hpp>
 #include <J3ML/Geometry/Plane.h>
 #include <J3ML/Geometry/Sphere.h>
 #include <J3ML/Geometry/Line.h>
@@ -10,7 +10,7 @@
 #include <J3ML/Geometry/Frustum.h>
 #include <J3ML/Geometry/OBB.h>
 #include <J3ML/Geometry/Capsule.h>
-#include <J3ML/Geometry/AABB.h>
+#include <J3ML/Geometry/AABB.hpp>
 #include <J3ML/Geometry/Polyhedron.h>
 #include <J3ML/Geometry/QuadTree.h>
 #include <J3ML/Geometry/Ray.h>
@@ -19,6 +19,7 @@
 #include <J3ML/Geometry/Triangle.h>
 #include <J3ML/Geometry/Triangle2D.h>
 #include <J3ML/Geometry/TriangleMesh.h>
+#include <J3ML/Geometry/PBVolume.hpp>
 
 #include <J3ML/Geometry/KDTree.h>
 

include/J3ML/Geometry/Common.h

@@ -22,6 +22,9 @@ namespace J3ML::Geometry
     class Triangle;
     class Triangle2D;
     class TriangleMesh;
+
+    template <int N> class PBVolume;
+
 }
 
 // Methods required by Geometry types

include/J3ML/LinearAlgebra/Common.h

@@ -19,6 +19,8 @@ namespace J3ML::LinearAlgebra
 
 
     using Position = Vector3;
+
+    template <int N> class PBVolume;
 }
 
 // Methods required by LinearAlgebra types