Support idKey conversion in the storage driver, instead of requiring X.fromKey("id")

[patroza]

Current

export const PrimaryKey = flow(S.propertySignature, S.fromKey("id"))

isin: PrimaryKey(ISIN),

query(where("id", someIsin))

Desired

const PrimaryKeySymbol = Symbol.for("effect-app/PrimaryKey")
export const PrimaryKey = (key: string) => flow(S.annotate(PrimaryKeySymbol, key))

isin: PrimaryKey("isin")(ISIN)

query(where("isin", someIsin)) // this is already the result of not using `fromKey`

where the driver maps isin to id and back, if the underlying storage mechanism demands it, like CosmosDB.
aka probably don't convert for in memory/json, or in the future in any SQL driver - set the PrimaryKey in SQL.

[patroza]

implementing but without the annotations, so keeping that as an upgrade in #91