When a bundle has a Service-Component header, it needs to have a
Bundle-ActivationPolicy: lazy header as well or otherwise Declarative
Services won't load any components automatically.

Add a warning and a quick-fix to be able to resolve such errors if they
occur.

Change-Id: Idb2bd050897d8fd170bc4463f1e3312053341ae9
Signed-off-by: Alex Blewitt <alex.blewitt@gmail.com>