Begin refactor.

src/display/matrix.h

@@ -6,7 +6,16 @@
  */
 
 #pragma once
-#include <dawn/dawn.h>
+#include "../libs.h"
+
+/**
+ * Representation for a matrix. Used as a highlevel wrapper for the math 
+ * functions that sit underneath this API.
+ */
+typedef struct {
+  /** Internal Matrix API */
+  mat4 internalMatrix;
+} matrix_t;
 
 /**
  * Makes matrix identity.