Add file structure to code

- Rename project to CopiumEngine

CopiumEngine/src/copium/main.cpp

@@ -0,0 +1,29 @@
+#include "copium/core/Application.h"
+#include "copium/util/Common.h"
+#include "copium/util/Timer.h"
+
+#include <GLFW/glfw3.h>
+
+int main()
+{
+  CP_ASSERT(glfwInit() == GLFW_TRUE, "main : Failed to initialize the glfw context");
+  {
+    Copium::Application application;
+    Copium::Timer timer;
+    int frames = 0;
+    while (application.Update())
+    {
+      glfwPollEvents();
+      if (timer.Elapsed() >= 1.0)
+      {
+        CP_DEBUG("main : %d fps", frames);
+        frames = 0;
+        timer.Start();
+      }
+      frames++;
+    }
+  }
+
+  glfwTerminate();
+  return 0;
+}