A serious refactor. Moved the entire window management process to another thread. Made a plotting interface with DLL exports. Refactored camera and changed transformation approach based on Jordan's suggestions

inc/util.hpp

@@ -1,10 +1,12 @@
 #pragma once
 
+#include <stdio.h>
 #include <cstdlib>
 #include <glm/ext/matrix_float4x4.hpp>
 #include <glm/ext/quaternion_float.hpp>
 #include <glm/ext/vector_float4.hpp>
-#include <stdio.h>
+
+#define DllExport   __declspec( dllexport ) 
 
 typedef unsigned int uint;
 
@@ -23,4 +25,9 @@ bool read_file(Array<char>* out, const char* filepath);
 Array<char*> split_str(const char* s, char delimiter);
 Array<char*> split_str(const char* s);
 
-glm::mat4 quat_to_mat4(glm::quat q);
+glm::mat4 quat_to_mat4(glm::quat q);
+
+template<class T> T lerp(T start, T end, float t) { return t * end + (1 - t) * start; }
+template<class T> float ilerp(T start, T end, T pos) { return (pos - start) / (end - start); }
+
+float randf(); // returns a float between 0 and 1