use aliased group in click commands

bob/fusion/base/script/fusion.py

@@ -3,10 +3,11 @@
 import click
 import pkg_resources
 from click_plugins import with_plugins
+from bob.extension.scripts.click_helper import AliasedGroup
 
 
 @with_plugins(pkg_resources.iter_entry_points('bob.fusion.cli'))
-@click.group()
+@click.group(cls=AliasedGroup)
 def fusion():
     """Score fusion related scripts"""
     pass