增加filplus相关功能查询

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参考lotus filplus相关功能

NAME:
   lotus filplus - Interact with the verified registry actor used by Filplus

USAGE:
   lotus filplus command [command options] [arguments...]

COMMANDS:
     grant-datacap                  give allowance to the specified verified client address
     list-notaries                  list all notaries
     list-clients                   list all verified clients
     check-client-datacap           check verified client remaining bytes
     check-notary-datacap           check a notary's remaining bytes
     sign-remove-data-cap-proposal  allows a notary to sign a Remove Data Cap Proposal
     list-allocations               List allocations made by client
     remove-expired-allocations     remove expired allocations (if no allocations are specified all eligible allocations are removed)
     help, h                        Shows a list of commands or help for one command

OPTIONS:
   --help, -h  show help (default: false)