MINNEAPOLIS — Slowly but surely, in bits and pieces, the Twins are finally getting the chance to see Marco Raya pitching like the young starting prospect with polish they’ve been so thrilled about. Next week will mark exactly three years since the Twins selected Raya in the fourth round of the 2020 MLB Draft, a rare high school pitcher selected early by an organization that traditionally hasn’t dabbled in that space. The pandemic year and injuries have limited Raya to 85 2/3 innings in those three years — but now, the Twins are hoping he’s finally at a place where…