Simplify structure of `$config` and `$compose`

[JsLth]

Currently the $config and $compose fields contain a list of the parsed file contents and a number of fields that contain the most important file contents in a more workable format. However, after v8.0.0 of OpenRouteService, most of these contents are nicely formatted anyways (at least in docker-compose.yml). Both $config and $compose could simply contain the parsed files. This would simplify the usage of the ORSLocal objects and make changes to these objects easier and more stable.