Improve Q.project ergonomics for basic selects

[patroza]

Q.project(S.Struct(SomeModel.pick("id", "name")) is a mouth full

Perhaps introduce Q.select as shorthand; Q.select(”id”, “name”) = Q.project(S.Struct(SomeModel.pick(”id”, “name”)))
or just allow Q.project to receive either field names; “id”, “name”, or fields: SomeModel.pick(”id”, “name”), next to a whole Schema.