HazelcastOSGiService: Contract point for Hazelcast services on top of OSGI.
org.osgi.framework.BundleContext as the OSGI service so the other bundles can
access and use Hazelcast on the OSGI environment through this service.
HazelcastOSGiInstance: Contract point for
HazelcastInstance implementations based on OSGI service.
HazelcastOSGiService provides proxy Hazelcast instances typed
HazelcastOSGiInstance which is
a subtype of
HazelcastInstance and these instances delegate all calls to the underlying