added glfw support

src/main.cpp

@@ -1,7 +1,23 @@
 #include <iostream>
 #include "RaycasterConfig.h"
+#include <GLFW/glfw3.h>
 
 int main(int argc, char *argv[]){
     std::cout << Raycaster_VERSION_MAJOR << "." << Raycaster_VERSION_MINOR << std::endl;
+    if(!glfwInit()){
+        std::cout << "GLFW Init failed" << std::endl;
+        return -1;
+    }
+    GLFWwindow* window = glfwCreateWindow(640, 480, "My Title", NULL, NULL);
+    if (!window){
+        std::cout << "GLFW Window creation failed" << std::endl;
+        return -1;
+    }
+    glfwMakeContextCurrent(window);
+    while(!glfwWindowShouldClose(window)){
+        glfwPollEvents();
+        glfwSwapBuffers(window);
+    }
+    glfwTerminate();
     return 0;
 }