N°5775 - Allow configuration of OAuth client on MS Azure with single tenant (#553)

* Add Tenant-Support for Azure OAuthClient

* Improvement: Make tenant required

* Improvment: Removed check for null-value

Since last commit, the "tenant"-field either set to a custom value or "common" by default. It is not allowed to be null

* Add field description

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Co-authored-by: Molkobain <lajarige.guillaume@free.fr>

sources/Core/Authentication/Client/OAuth/OAuthClientProviderAzure.php

@@ -20,8 +20,9 @@ class OAuthClientProviderAzure extends OAuthClientProviderAbstract
 			'clientId'               => $oOAuthClient->Get('client_id'),
 			'clientSecret'           => $oOAuthClient->Get('client_secret'),
 			'redirectUri'            => $oOAuthClient->Get('redirect_url'),
+            'tenant'                 => $oOAuthClient->Get('tenant'),
 		];
 
 		$this->oVendorProvider = new Azure($aOptions, $collaborators);
 	}
-}
+}