Author: Stevani Andolo
MDL-78428 tiny_media: Implemented add embed thumbnail
http://git.moodle.org/gw?p=moodle.git;a=commit;h=160dd3289da91040b49772b8d42689041a14421f
http://github.com/moodle/moodle/commit/160dd3289da91040b49772b8d42689041a14421f
+ 5.0 en [addmediathumbnaildrop,tiny_media]
+ 5.0 en [insertmediathumbnail,tiny_media]
+ 5.0 en [loadingembedthumbnail,tiny_media]
+ 5.0 en [uploadthumbnail,tiny_media]