Add oauth support

- Support azure, bitbucket, github, gitlab, google providers
- Add authentication page to settings

Co-authored-by: Suraj Kumar <srjkmr1024@gmail.com>
Co-authored-by: Michael Castanieto <mcastanieto@gmail.com>
Co-authored-by: Mike Kim <m.kim4247@gmail.com>

config/services.php

@@ -30,5 +30,4 @@ return [
         'secret' => env('AWS_SECRET_ACCESS_KEY'),
         'region' => env('AWS_DEFAULT_REGION', 'us-east-1'),
     ],
-
 ];