Rename filter_h5p to filter_displayh5p

Check filter is still working as expected Prerequisites: Having multiple H5P content URLs: Go to admin -> plugins -> filters -> Display h5p and, in "Allowed sources", add this: https://h5p.org/h5p/embed/[id] https://h5p.org/h5p/embed/[id] https://moodle.h5p.com/content/[id] Test Check in Site administration > Plugins > Filters > Manage filters 'Convert URLs into links and images' filter is Disabled or, in case it is On, is ordered below Display H5P filter. Create a course C1. In course C1, add a Label anywhere. In the Label text Atto editor, copy and paste  the following text using the HTML/code view : <div>1.valid URL: https://h5p.org/h5p/embed/580638</div> <div>2.another valid URL: https://h5p.org/h5p/embed/6729</div> <div>3.non valid URL: https://moodle.org</div> <div>4.URL inside a link tag: <a href="https://h5p.org/h5p/embed/6729">link</a></div> <div>5.paragraph with a valid URL https://h5p.org/h5p/embed/580638 inside</div> <div>6.a valid URL ended by '/embed': https://moodle.h5p.com/content/1290729733828858779/embed</div> <div>7.an h5p.com valid URL not ended by '/embed': https://moodle.h5p.com/content/1290729733828858779</div> Confirm that the H5P contents of 1, 2, 5, 6 and 7 are displayed.