1: Get payment method from tariff file.
2: Use tariffIs24_7() helper (Tariff for Schoenau is such a case)
3: Add new code for neuhauser/linsinger maschinenbau:
Very similar to Schoenau, but here there are extra operating times
6.00-18.00 during the week, 6-12 on Saturday.
Check if the current time is inside such time ranges and return
associated price.