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>

bootstrap/helpers/socialite.php

@@ -0,0 +1,26 @@
+<?php
+
+use App\Models\OauthSetting;
+use Laravel\Socialite\Facades\Socialite;
+
+function get_socialite_provider(string $provider)
+{
+    $oauth_setting = OauthSetting::firstWhere('provider', $provider);
+    $config = [
+        'client_id' => $oauth_setting->client_id,
+        'client_secret' => $oauth_setting->client_secret,
+        'redirect' => $oauth_setting->redirect_uri,
+        'tenant' => $oauth_setting->tenant,
+    ];
+    $provider_class_map = [
+        'azure' => \SocialiteProviders\Azure\Provider::class,
+        'bitbucket' => \Laravel\Socialite\Two\BitbucketProvider::class,
+        'github' => \Laravel\Socialite\Two\GithubProvider::class,
+        'gitlab' => \Laravel\Socialite\Two\GitlabProvider::class,
+        'google' => \Laravel\Socialite\Two\GoogleProvider::class,
+    ];
+    return Socialite::buildProvider(
+        $provider_class_map[$provider],
+        $config
+    );
+}