Consider scaffolding default value configuration even when it's the default CLR type

We currently have [code](https://github.com/dotnet/efcore/pull/30927/changes#diff-9995d5a8e30e4189fdb601342142612479f1fbb25ca5682e69d63a08379e03ef) in the reverse engineering template which skips scaffolding default value config when the default value is the CLR default. We can consider removing that, always scaffolding default value config if there's a default value in the database. That would provide a more faithful model, improve roundtripability of the database schema, etc.

Raised by @sciutand in https://github.com/npgsql/efcore.pg/issues/3683