Allow wrapping the column in custom SQL for custom types

[dankochetov]

For example, to always select fn(column) instead of column

[ItsWendell]

Related issue with 7+ likes.

https://github.com/drizzle-team/drizzle-orm/issues/1083

This should also support doing the same for inserts and updates, so you can insert e.g. postgis data in different formats (text, hex, geojson, wdx, etc) using the ST_ PostGIS functions.

[algora-pbc]

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[Angelelz]

/attempt #1423