[PM] Restrict PM Access to Sponsors with Prizes

[andrewdimmer]

Describe the bug
Currently, any sponsor is able to preform actions on the Prize Module provided that the companyId of the prize matches the companyId of the SPONSOR user who creates that prize. Then, all of the approval process for the prize is done by the organizer team, who will need to manually reject any prizes created by sponsors that don't have prizes as a sponsor benefit.

Expected behavior
Not all sponsors have prizes, so the PM should be restricted to only include sponsors that have prizes based on the benefits listed for them in the STPM (as exposed by #25 ). This will also likely require a breaking change to the STMP data type to define more information about prizes regarding things like the number of prizes, in addition to the total budget as it is designed now.

Additional context
Additional thought will be required to figure out the edge case where the sponsor prize benefits change after prizes have been created though, however, which is the reason this issue has been moved to unallocated.