feat(ui5-tooling-transpile): allow aliasing for request paths for the middleware

[petermuessig]

The configuration has been extended to allow to specify aliasPatterns like that:

  config:
    aliasPatterns:
      "^/__alias/([^.]+)\\.([^.]+)/(.*)$": "/resources/$1/$2/$3"
      "^/__alias/([^.]+)\\.([^.]+)\\.([^.]+)/(.*)$": "/resources/$1/$2/$3/$4"

The key is a regex and the value the replacement. This can be used to convert the request url.

Fixes #1209