Is your feature request related to a problem? Please describe.
LTS - Expose utility methods for admin command.
Expose following utility methods for implementing admin commands.
-Evict metadata cache
-Evict read index cache
-Evict read index cache for segment
-Check chunk segment storage sanity

Describe the solution you'd like
Implement the following commands for respective utility methods listed above:

-segmentstore evict-meta-data-cache [container-id] [segmentStore-endpoint]
-segmentstore evict-read-index-cache [container-id] [segmentStore-endpoint] [fully-qualified-segment-name]
-segmentstore check-chunk-sanity [container-id] [qualified-chunk-name] [data-size] [segmentStore-endpoint]

Note: [fully-qualified-segment-name] is an optional parameter EvictReadIndexCacheCommand