Allow issue template to require all checkboxes ticked before it can be closed and successfully trigger continue of build

[jpike88]

Title is self explanatory, this will ensure people actually read and action the preflight checks in the ticket

[trstringer]

Great idea! Added to the backlog.

[jpike88]

This should be easy, just do a regex for - [ ] in the comment, and if any are present, add a comment saying all boxes need to be ticket.

This can be maybe turned on/off via a flag