Move the `get_name` method to the base report class, so that it can be
implemented by all report types. Provide a default implementation for
system reports based on the name of the class.
Use the name of the report as the caption. Target via Behat selectors.
This change contains most of the output components required for
reports such as exporters, templates, AMD modules.
Also included are classes within the component table namespace which
are required for extending the dynamic table API.
Paul Holden