LibWeb/WebGL: Implement createFramebuffer

Author: https://github.com/Lubrsi 🔰
Commit: c5e9615c29
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2791
Reviewed-by: https://github.com/gmta
Reviewed-by: https://github.com/shannonbooth

Libraries/LibWeb/WebGL/WebGLFramebuffer.h

@@ -15,10 +15,12 @@ class WebGLFramebuffer final : public WebGLObject {
     GC_DECLARE_ALLOCATOR(WebGLFramebuffer);
 
 public:
+    static GC::Ptr<WebGLFramebuffer> create(JS::Realm& realm, GLuint handle);
+
     virtual ~WebGLFramebuffer();
 
 protected:
-    explicit WebGLFramebuffer(JS::Realm&);
+    explicit WebGLFramebuffer(JS::Realm&, GLuint handle);
 };
 
 }