Show payment route on probe summary

[mrfelton]

Description:

Display route summary on payment probe summary screen.

Motivation and Context:

Ability to see details of probed route before paying.

How Has This Been Tested?

Manually

Screenshots (if appropriate):

Types of changes:

Enhancement

Checklist:

• My code follows the code style of this project.
• I have reviewed and updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes where needed.
• All new and existing tests passed.
• My commits have been squashed into a concise set of changes.