Adding Sparkplug Compatability trademark License Agreement to Sparkplug Website

Final Agreement: https://gitlab.eclipse.org/eclipse-wg/sparkplug-compatibility-and-branding-program/uploads/9508581f7eebc6c09b02112995fe68e2/Sparkplug_Trademark_Compatibility_License_EF-BE.pdf

Link to website: https://sparkplug.eclipse.org/compatibility/get-listed/

Desc: add the final agreement above to the get listed page of the sparkplug website.

Where to add: pls refer to snapshot and link agreement to highlighted text:

@webdev