Bug 27017: Code more defensively in process_invoice

Bug 27017: Code more defensively in process_invoice

This patch adds a check for ordernumber precence in the EDI Invoice
message lines and skips process if one is not found.

We log the failure as a trace log to allow administrators the oportunity
to track down the issue further.

We also add a trace log to entries to show which bib the invoice line
is receipting to.

Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>