Resolve "Unfinished appointments"

added 9 commits

ca50c07b - unused code removed
3ac61187 - flying team is passed as separate field from api (not a part of location name)
137bebc0 - arguments renamed to not shadow system built-ins
b362fffa - list of appointments is searchable and sortable
df4fdc4a - unfinished appointments corresponds only to visit appointments
2461fb76 - schema for unfinished appointment list
0dbdadcc - unit test checking if column list generation is done properly
24ff6af3 - common unit test initialization extracted
ccd5f8e9 - unit tests for filtering appointemnets api

unmarked as a Work In Progress

enabled an automatic merge when the pipeline for ccd5f8e9 succeeds

merged

mentioned in commit 373bc97a

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