Add configuration option for additional endpoint paths

[osamra-rbi]

Is your feature request related to a problem? Please describe.
There's currently no way to allow additional paths for endpoints. For example, we want to expose the GraphQL endpoint on both

• /graphql
• /gateway

Describe the solution you'd like
A configuration option to allow multiple paths would be nice where you can pass in a list:

multiple_paths:
    - /path1
    - /path2

[bnjjj]

Part of the solution is to use /p:router_path as path parameter. It will match /path1 and /path2. However it's not a consistent notation in that case it would be more consistent to use /p*. So I think the correct way to handle your need is to fix this weird inconsistency.