Accounting Report: Allow further distinction of non-café income

[ursjoss]

In #55 we introduced a split of the items summarized in Gross Card LoLa (aliased 10920/30200) into

• Cafe_Card (aliased still 10920/30200) and
• Verm_Card (aliased 10920/30700).

The newly introduced latter column still captures too much. Postings identified to belong somewhere else are e.g.:

• Schlüsseldepot -> 10920/23050
• Income for cultural event (e.g. Quartierkultur) -> 10920/32000
• Rental fee -> 10920/31000 or 10920/31100 -> maybe 10920/31X00

Probably the easiest way of maintaining that would be to have dedicated Topics, which maintain their own accounts to post this into.

Consider only maintaining one other category that indicates to look up the account in the Kassa-Dokument.