Added events and Workflow entity for submissions

Signed-off-by: Ferdinand Thiessen <rpm@fthiessen.de>

lib/Events/SubmissionEvent .php

@@ -0,0 +1,28 @@
+<?php
+
+namespace OCA\Forms\Events;
+
+use OCA\Forms\Db\Submission;
+use OCP\EventDispatcher\Event;
+
+class SubmissionEvent extends Event {
+	public const CREATED = 1;
+	public const DELETED = 2;
+
+	private int $type;
+	private Submission $submission;
+
+	public function __construct(int $type, Submission $submission) {
+		parent::__construct();
+		$this->type = $type;
+		$this->submission = $submission;
+	}
+
+	public function getType(): int {
+		return $this->type;
+	}
+
+	public function getSubmission(): Submission {
+		return $this->submission;
+	}
+}