This extension point allows plugins to contribute entries to the top
menu of Gerrit's Web UI.
The usage is really simple, just implement TopMenu and add @Listen
annotation or bind the implementation in plugin's module using:
DynamicSet.bind(binder(), TopMenu.class).to(PluginFooTopMenu.class);
Currently we only allow contribute top level menu entries with given
name and list of menu items with name and URL.
Change-Id: Ie161e0a61fdf041340df1aa0d6945fd479f34842
Signed-off-by: Dariusz Luksza <dariusz@luksza.org>