Migrate historical ATR category data

[radumas]

An ~imminent~ upcoming update to MOVE’s schema will remove the VDS data and Bicycle ATRs (permanent counters) from the legacy schema (loaded into FLOW at some point in time). Set us up in a way so that the disappearance of those datasets from move_staging won’t impact our usage of the three datasets

Data for category_id IN (2,6,7) (RESCU, PermStn and Bicycle) will be removed from traffic.cnt_det and traffic.countinfo.

[gabrielwol]

In a mild panic yesterday I copied data for category_id 6 into traffic.cnt_det_6 & traffic.countinfo_6 (& ditto for _7). They have the same definitions as the base tables.

• Nate has been made aware and will adjust the volume index which uses category_id = 7.
• I already copied category_id = 2 data over into vds schema as part of #965

Anything else you see to do?