better project structure

framework/src/hello.cpp

@@ -0,0 +1,24 @@
+#include "hello.h"
+
+#include <GLFW/glfw3.h>
+
+#include <stdio.h>
+#include <string>
+
+void hello() {
+    printf("Hello, World!\n");
+}
+
+int showWindow(const std::string &title) {
+    if (!glfwInit()) return EXIT_FAILURE;
+
+    GLFWwindow *window = glfwCreateWindow(1280, 720, title.c_str(), nullptr, nullptr);
+
+    while (!glfwWindowShouldClose(window)) {
+        glfwPollEvents();
+    }
+
+    glfwDestroyWindow(window);
+    glfwTerminate();
+    return EXIT_SUCCESS;
+}