Avoid creating draws server-side #8
Description
The current way to generate draws is through making a POST request to /draws withe the event id as the body, and then calling /draws/confirm/:eventId. The problem with this approach, as noted in issue #3 is that the current algorithm is too slow and does not generate all possible combinations.
Instead, I propose that these draws be generated on the client side and sent to /draws/confirm/:eventId with a POST request with the body holding all draws. This will make for faster draw generation and also allow organizers to manually create pairings.