Improve CLI for creating orders

[eugenegoncharuk]

There is one thing he could improve, CLI for creating orders, currently, there is a missing feature to "tab through identities" when inputting one.

For reference point can try using CLI tool and typing in identities get
and you will be suggested your identities
order create (or something like that, don't remember exactly) does not have this
and we have users who top-up via CLI.

Please, ask @tomasmik for help if needed.

[Zensey]

If needed
orderID completion can also be supported in the following way:

	readline.PcItem("orders",
		readline.PcItem("create"),
		readline.PcItem("get",
			readline.PcItemDynamic(getIdentityOptionList(tequilapi),
				readline.PcItemDynamic(getOrdersOptionList(tequilapi)),
			),
		),
		readline.PcItem("get-all"),
		readline.PcItem("currencies"),
	),