Allow custom settings per route

🚧 THIS IS A TICKET MIGRATED FROM UPVOTY. The original ticket and comments will be available for a limited time over at:
https://abrp.upvoty.com/b/request-a-feature/allow-custom-settings-per-route/
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Many settings such as speed and so on are global.
It would be great to be able to adjust those settings per planned route.

Especially things like 'Avoid Highways'