[#8] remove CoreManager glfw calls

projects/first_triangle/src/main.cpp

@@ -6,7 +6,6 @@
 
 int main(int argc, const char** argv) {
     const char* applicationName = "First Triangle";
-    vkcv::initGLFW();
 	vkcv::Window window = vkcv::Window::create(
             applicationName,
         800,
@@ -36,6 +35,5 @@ int main(int argc, const char** argv) {
 	while (window.isWindowOpen()) {
 		window.pollEvents();
 	}
-    vkcv::terminateGLFW();
 	return 0;
 }