Create a TestUtility to provide dynamic data from Csv Resource

[mwwhited]

    private static IEnumerable<object[]> CalcInvoiceChargesTestDataSet()
    {
        using var stream = typeof(TestModel).GetResourceStream("TestData.csv");
        using var reader = new StreamReader(stream);
        using var csv = new CsvReader(reader, CultureInfo.InvariantCulture);
        csv.Configuration.AllowComments = true;
        foreach (var record in csv.GetRecords<>())
            yield return new[] { record }; //TODO: make this an object array or at least configurable is some fashion to improve test data source 
    }

    [DataTestMethod, TestCategory(TestCategories.Unit)]
    [DynamicData(
        nameof(TestModel),
        DynamicDataSourceType.Method
        //DynamicDataDisplayName = nameof(TestModel.TestCase)
        )]