#1336 add Invoice Item id as param valid in account item-detail command

[ATGE]

No description provided.

[allmightyspiff]

Looks good, but get_billing_item_from_invoice needs to pull in the order->user information. Otherwise everything will show up as ordered by IBM.

[allmightyspiff]

TESTING

$ ./slcli --format=table  -v account item-detail 1677911496
Calling: SoftLayer_Billing_Item::getObject(id=1677911496, mask='mask[ orderItem[id,order[id,userRecord[id,email,displayName,userStatus]]], nextInvoiceTotalRecurringAmount, location, hourlyFlag, children ]', filter='None', args=(), limit=None, offset=None))
Calling: SoftLayer_Billing_Invoice_Item::getBillingItem(id=1677911496, mask='', filter='None', args=(), limit=None, offset=None))
:...............................................:
:           1 x 2.0 GHz or higher Core          :
:..................:............................:
:       Key        :           Value            :
:..................:............................:
:    createDate    :         2020-04-07         :
:  cycleStartDate  :         2020-09-03         :
: cancellationDate :            None            :
:   description    : 1 x 2.0 GHz or higher Core :
:       FQDN       :    activedirectory.None    :
:   recurringFee   :             0              :
:    Ordered By    :            IBM             :
:      Notes       :            None            :
:     Location     :            None            :
:..................:............................:

[allmightyspiff]

Changes look good, thanks.
Not sure why analysis started failing, but i'll fix that in #1347 and then merge this.