Real time auction for 1 payment path peer increase, show entire payment path, traversed peer limits

[ghost]

Offer feature to show entire payment path and traversed peer limits.

Also offer feature to submit payment which is willing to pay higher fees that would otherwise fail due to credit limit too low on a single hop of a multi hop transaction.

Offer feature to launch real time auction for higher fees on a connector for a single payment, in exchange for having that peer on path raise its peer limit.