Embedded struct support

[Kolterdyx]

It would be nice to have support for automatically matching fields across embedded structs:

type AuditData struct {
    CreatedAt time.Time
    UpdatedAt time.Time
}

type A struct {
    Name string
    CreatedAt time.Time
    UpdatedAt time.Time
}

type B struct {
    Name string
    AuditData
}

var A2B = convgen.Struct[A, B]() // currently this fails because it doesn't match fields inside embedded structs

I know this can be done manually using convgen.Match, but that has to be on a field by field basis, for every converter. It would be nice if we could have a module option for some embedding level of automatic search:

var mod = convgen.Module(convgen.MatchEmbedded(1)) // Match embedded structs automatically, up to one level

// ...

var A2B = convgen.Struct[A, B]() // Would match A.CreatedAt to B.AuditData.CreatedAt, and so on