A Geopackage data type for use with geopackage-encoded fields

Example:

  defmodule MyApp.Geopackage do
    use Ecto.Schema

    @primary_key false
    schema "some_table_in_geopackage" do
      field(:id, :integer, source: :OBJECTID)
      field(:name, :string)
      field(:shape, GeoSQL.Geometry.Geopackage, source: :Shape)
    end
  end

The schema can now be used in queries like any other:

  from(g in MyApp.Geopackage) |> MyApp.GeopackageRepo.all()