MDL-77576 core_communication: Add core communication api

This commit will implement the base api for core
communication. This will include the room creation,
room membership, room access url and all associated
api and related interfaces.

Originally implemented as MDL-76702, MDL-76703 and MDL-76705.

Co-Authored-By: David Woloszyn <[email protected]>
Co-Authored-By: Safat Shahin <[email protected]>

communication/classes/communication_provider.php

@@ -0,0 +1,38 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+namespace core_communication;
+
+/**
+ * A base communication provider.
+ *
+ * This interface should be used to declare support for the instantiation method for communication providers.
+ *
+ * Every communication provider must, as a minimum, implement this provider.
+ *
+ * @package    core_communication
+ * @copyright  2023 Andrew Lyons <[email protected]>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+interface communication_provider {
+
+    /**
+     * A base communication provider.
+     *
+     * @param processor $communication The communication object
+     */
+    public static function load_for_instance(processor $communication): self;
+}