feat: separate transit routing costs

[sebhoerl]

• A recent matsim-libs PR makes it possible to look up costs when routing via the SwissRailRaptor based on the transportMode of the respective TransitRoute
• In our experimental branches we previously added a similar functionality (routing costs by transport mode) using other hacks
• This PR now integrates the new functionality so we can use it easily without overrides in our code
• The PR introduces the eqasim:raptor config module which contains the utility parameters for the most important modes
• The new functionality is activated by default. Currently, the config values are set such that the simulations produce exactly the same results as before. Note that the values may seem a bit odd (-6 and -7), which is due to the "utility of performing and activity" that was previously integrated as an opportunity cost for the construction of the arc costs used in SRR
• Future PRs will set more sensible values based on a survey calibration