Revisit custom queries

[danielballan]

It is possible to factor PartialUID as a simple Regex query.

It is possible to factor ScanID as an Eq or In query (when multiple scan IDs given). We handle duplicates on the client side. To fetch latest, sort by time and access the first. To fetch all, fetch all. To error on duplicates, consult the length of the result and then fetch the first if it is 1.

It is possible to factor ScanIDRange as a Rangw query, which it seems we should add to Tiled.