Make all REST resources public so that they can be used from plugins

Make the RestResource classes and their constructors public so that they
can be used from plugins. Most RestResource classes were already public,
so this makes it consistent across all RestResources.

Change-Id: I49b7dc9b3bd7e9b0734d5933392df60b006e5745
Signed-off-by: Edwin Kempin <edwin.kempin@sap.com>
9 files changed