Add support for wildcard path matching

[lem-onade]

E.g.

"path": "/*"

Should match every possible path:

https://handlers.js/hello
https://handlers.js/hello-world
https://handlers.js/hello/world
https://handlers.js/hello/world/exclamation

Currently, the only wildcard-like functionality that is available, is using variables in the path ("path": "/:some-variable"). However, this only allows for a "wildcard" on the base URl/root. Any nested path will not match:

https://handlers.js/hello -> match
https://handlers.js/hello-world -> match
https://handlers.js/hello/world -> no match
https://handlers.js/hello/world/exclamation -> no match