Added category to the certificate.
Forgot to add foreign key.
Added BL for certificate category.
Front end.

Also fixed how the certificate number is assigned.
Updated job notes character limit.
Added carriage to order item.
Added carriage to pending order item.
Added success case for carriage.
Added case for carriage.
Added case for carriage on edit.
Added carriage to view models.
Added carriage to create item.
Added carriage to Edit item.
Added cases for invalid carriage.
Added carriage to the UI.
Added carriage to the report.