New operational commands for security policy configuration

The following operational commands are introduced: 

• show security policies information 
• show security policies checksum 
• request security policies check 
• request security policies resync 

The show security policies information command provides detailed information about the policies configured devices. The show security policies checksum, request security policies check, and request security policies resync commands are used to synchronize security policies between the Routing Engine and the Packet Forwarding Engine.