Add style endpoints

Signed-off-by: David Celis <me@davidcel.is>
Add an AuthorizationHelper

Signed-off-by: David Celis <me@davidcel.is>
Add user endpoints

Signed-off-by: David Celis <me@davidcel.is>
Add endpoints to rate beers

Signed-off-by: David Celis <me@davidcel.is>