Add Sponsor level to Check In View

[Mchampsee]

Add the sponsorship level to the Check In view. It isn't necessary to show t-shirt sizes, etc., just the dollar level. Alternatively, you can change the Donations view to be searchable by persons name, but this will be much slower on the registration volunteers and could impact our ability to upsell people on sponsorships. Note that we don't force people to take the sizes that they ordered. It's more of a guide of what to order.