Update/fix prerequisites
Upgrade elixir and erlang
Add helper for parsing HTTP dates
Add NimbleCSV for parsing CSV files
Improve naming and typespec
Format javascript, tweak line length
Setup page for displaying realtime zet data
Add fetching for ZET realtime data
Add dependancy on protobuf
Add basic API for Autotrolej
Match post offices by post code, not ref
Appease credo
Reorganize HPS code
Move Hps schemas
Upgrade more telemetry
Fix osm_link being rendered when relation is null
Remove invalid null option from fields

That's only used in migrations.
Upgrade dependencies