MDL-75261 tiny_h5p: Add the Tiny H5P plugin

Part of MDL-75966

AMOS BEGIN
 CPY [browserepositories,atto_h5p],[browserepositories,tiny_h5p]
 CPY [copyrightbutton,atto_h5p],[bcopyrightbutton,tiny_h5p]
 CPY [downloadbutton,atto_h5p],[downloadbutton,tiny_h5p]
 CPY [embedbutton,atto_h5p],[embedbutton,tiny_h5p]
 CPY [h5p:addembed,atto_h5p],[h5p:addembed,tiny_h5p]
 CPY [h5pfile,atto_h5p],[h5pfile,tiny_h5p]
 CPY [h5pfileorurl,atto_h5p],[h5pfileorurl,tiny_h5p]
 CPY [h5poptions,atto_h5p],[h5poptions,tiny_h5p]
 CPY [h5purl,atto_h5p],[h5purl,tiny_h5p]
 CPY [invalidh5purl,atto_h5p],[invalidh5purl,tiny_h5p]
 CPY [instructions,atto_h5p],[instructions,tiny_h5p]
 CPY [noh5pcontent,atto_h5p],[noh5pcontent,tiny_h5p]
AMOS END

lib/classes/plugin_manager.php

@@ -2029,6 +2029,7 @@ public static function standard_plugins_list($type) {
             ),
 
             'tiny' => [
+                'h5p',
             ],
 
             'tinymce' => array(