[Notifier] Add Seven Notifier Bridge

Seven.io is the new name of SMS77, they changed also the URL
to the gateway. To reflect that change, this patch introduces the
new Seven Notifier Bridge.

The current SMS77 Bridge should be deprecated in another patch

Author: NeoBlack

DependencyInjection/FrameworkExtension.php

@@ -2745,6 +2745,7 @@ private function registerNotifierConfiguration(array $config, ContainerBuilder $
             NotifierBridge\RocketChat\RocketChatTransportFactory::class => 'notifier.transport_factory.rocket-chat',
             NotifierBridge\Sendberry\SendberryTransportFactory::class => 'notifier.transport_factory.sendberry',
             NotifierBridge\SimpleTextin\SimpleTextinTransportFactory::class => 'notifier.transport_factory.simple-textin',
+            NotifierBridge\Sevenio\SevenIoTransportFactory::class => 'notifier.transport_factory.sevenio',
             NotifierBridge\Sinch\SinchTransportFactory::class => 'notifier.transport_factory.sinch',
             NotifierBridge\Slack\SlackTransportFactory::class => 'notifier.transport_factory.slack',
             NotifierBridge\Sms77\Sms77TransportFactory::class => 'notifier.transport_factory.sms77',

Resources/config/notifier_transports.php

@@ -90,6 +90,7 @@
         'redlink' => Bridge\Redlink\RedlinkTransportFactory::class,
         'ring-central' => Bridge\RingCentral\RingCentralTransportFactory::class,
         'sendberry' => Bridge\Sendberry\SendberryTransportFactory::class,
+        'sevenio' => Bridge\Sevenio\SevenIoTransportFactory::class,
         'simple-textin' => Bridge\SimpleTextin\SimpleTextinTransportFactory::class,
         'sinch' => Bridge\Sinch\SinchTransportFactory::class,
         'sms-biuras' => Bridge\SmsBiuras\SmsBiurasTransportFactory::class,