Bulk Operation

SENTRY-432 Add e2e testcases for Sentry HDFS integration

SENTRY-432 Modify SentryMetastorePostEventHandler to post updates to Sentry on HMS Path changes

SENTRY-432 Create UpdateHandler and Forwarder that stores updates in a log to be sent to Sentry NN plugin

SENTRY-432 Add Thrift endpoints to handle updates from HMS as well as request for updates from Sentry Namenode plugin

SENTRY-432 Implement SentryAuthorizationProvider namenode plugin

SENTRY-432 Create wrapper classes for the Path and Permission data structures to handle Full/Partial updates

SENTRY-432 Create common in-memory data structures for efficient storage of Path and Permission information