Add force redeem function

[lkngtn]

Currently redemptions are only ever triggered by the person redeeming, but in some cases it may be reasonable for the organization to kick a member out. Currently this means burning their tokens, which if the person is paying attention will prompt them to redeem before the their tokens are burnt.

However relying on the person to take action in order to redeem is not necessarily the desired result. We should add a role to redemption allowing the redeem function to be called for a given address which can be protected by a role.