Add public Arguments property

[shadowspawn]

Pull Request

Problem

There is no public property for the command Argument[], like there is with program.options and program.commands.

The Help.visibleArguments() is not a working alternative since unless the argument have descriptions, there are no visible arguments.

See: #1823

Solution

Add .registeredArguments, as suggested in #1970

Reminder to self: preserve co-author commit comment.

ChangeLog

• add cmd.registeredArguments to access the command Argument array

[abetomo]

+1

[shadowspawn]

Shipped in Commander v11.1.0