[0.0.2] Adds Google and Github OAuth2 Login

Implements integration with the Backend API feature of OAuth2 Login with Google and Github.

src/app/shared/model/user/user.model.ts

@@ -2,7 +2,7 @@ import { Token } from "../token/token.model";
 
 export interface User {
     id?: number,
-    fullname?: string,
+    name?: string,
     email?: string,
     username: string,
     password?: string,