Add id for endpoint to request

[m1h43l]

Currently it is not possible in a plugin to identify which endpoint/route is serving the request. It would be nice to be able to add an identifier to the il_addRoute function and add that to the request data structure so that the plugin can access it and act dynamically to that value.

Use case: Have a plugin that adds CORS header corresponding to the endpoints used based on a provided configuration.

[NielsLiisberg]

Routing now allows parameter:

il_addRoute(config : %paddr(test1) : IL_ANY : '/simpletest/{myId}/list/{myNum
Look in examples routeparms.rpgle