This commit updates the plugin to the latest guidelines, as shown in
discourse-plugin-skeleton, which involves moving a lot of the code to
dedicated files, use proper namespaces, use the autoloader as much as
possible, etc.
During the upgrade to Octane group reports did not have the necessary 'updateParams' function added to have the param input changes bubble up to the parent. This PR adds the missing function as well as a small test to check that params can be inputted as expected (inserting a param would error previously).
Bianca Nenciu
Isaac Janzen
Frank
Jarek Radosz