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/camera.hpp

@@ -0,0 +1,24 @@
+#pragma once
+
+#include <glm/matrix.hpp>
+
+struct Viewport {
+    float fov_degrees;
+    float width;
+    float height;
+};
+
+Viewport make_viewport(float win_w, float win_h, float fov_degrees);
+glm::mat4 camera_to_projection(Viewport& v);
+
+struct Camera {
+    glm::vec3 focus;
+    float theta, phi, distance;
+};
+
+Camera make_camera(glm::vec3 focus, float distance);
+void pan_camera(Camera &c, glm::vec2 dxdy);
+void rotate_camera(Camera &c, glm::vec2 dxdy);
+void zoom_camera(Camera &c, float dz);
+glm::mat4 world_to_camera(Camera& c);
+glm::mat4 camera_to_world(Camera& c);