bin/hsw-cli: reorder commands.

[boymanjor]

Previously, mkwallet was incorrectly designated an admin command. Likewise, master was not designated an admin command. This PR fixes this. H/t @bemusementpark for inspiring the investigation.

[boymanjor]

My hesitation in merging this comes from maintaining backwards compatibility for any bash scripts using mkwallet with the erroneous, leading admin sub command. Technically, this means a major version bump, but I'm not sure it is worth it.

[bemusementpark]

admin is not documented as an option when you run hsw-cli, so these commands are still not very discoverable.

hsw-cli admin
Unrecognized command.
Commands:
  $ wallets: List all wallets.
  $ wallet create [id]: Create wallet.
  $ resend: Resend pending transactions.
  $ backup [path]: Backup the wallet db.
  $ rpc [command] [args]: Execute RPC command.