Organize commands into subcommands

blockchain/bc?:
- argos
- blocks
- diffi −> difficulty
- info
- verify
money:
- balance
- history
- transfer
wot:
- cert −> certification
- lookup
- membership
- revocation
- wot −> status?
- (identity)
authfile −> authentication
about
checksum
license

Rename unclear functions names of commands

Harmonize, and rename to long commands?
with revocation we would end-up with four words: silkaj wot revocation save. Is this too much? Seems fine.

Edited Oct 17, 2022 by Moul

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