Release 15th August 2021 - Vendor Booking TTI Phase 4

Summary:
Allow Booking Reference to be optional

Ticket:https://bigdigit.atlassian.net/browse/DCM-1723

Detail:
Remove the ‘required’ validation that a ‘Booking Form’ must contain a ‘Booking Reference’ when created and populate this with a unique number if the ‘Booking Reference’ is empty This will take the responsibility away from the User if they choose not to enter a ‘Booking Reference’.

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Summary:
Booking Form Print - Terms and Conditions

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