OSGi catalog item test (see full msg for details)

Add some more OSGi test bundles - see OsgiTestResources.
Write lots more tests of OSGi loading and item ID - in OsgiEntitiesTest, and in camp project using YAML e.g. Catalog*Osgi*Test.java .
Also load OSGi on addItem(CatalogItem), and improve OSGi loading error messages when OSGi loading fails.
Better error messages on OSGi failures.
Merge branch 'master' into misc6