Move everything from global namespace to "sp" namespace

When writing the X11 (linux) implementation there was a problem with X11 defining a "Display" type and we also have a Display class in the engine.

So to fix that problem and minimize the risk for running into other name conflicts. We move everything from global namespace.

include/Spectre/Math/Math.h

@@ -6,7 +6,7 @@
 #include "Vector2.h"
 #include "Matrix4.h"
 
-namespace math
+namespace sp { namespace math 
 {
 	float rand(float min, float max);
 
@@ -28,13 +28,13 @@ namespace math
 	// ------------------------------
 
 	// Create a orthographic projection matrix.
-	Matrix4f orthoProjection(float left, float right, 
-		float bottom, float top, 
+	Matrix4f orthoProjection(float left, float right,
+		float bottom, float top,
 		float zNear = -1.0f, float zFar = 1.0f);
 
 	// Create a 2D rotation matrix. (rotation around Z-axis)
 	Matrix4f rotation(float theta);
-	
+
 	// Create a 2D translation matrix.
 	Matrix4f translate(const Vector2f& v);
 
@@ -47,6 +47,7 @@ namespace math
 	Vector3f getUpVector(const Matrix4f matrix);
 
 	Vector3f getForwardVector(const Matrix4f matrix);
-};
+
+} } // namespace sp
 
 #endif /* SPECTRE_MATH_MATH_H */