allow users to define what field sthey want to see in vehicle maintenance report.

Models/Report/GenericReportModel.cs

@@ -12,5 +12,6 @@
         public string Notes { get; set; }
         public decimal Cost { get; set; }
         public List<UploadedFiles> Files { get; set; } = new List<UploadedFiles>();
+        public List<ExtraField> ExtraFields { get; set; } = new List<ExtraField>();
     }
 }

Models/Report/ReportParameter.cs

@@ -0,0 +1,14 @@
+namespace CarCareTracker.Models
+{
+    public class ReportParameter
+    {
+       public List<string> VisibleColumns { get; set; } = new List<string>() { 
+           nameof(GenericReportModel.DataType), 
+           nameof(GenericReportModel.Date), 
+           nameof(GenericReportModel.Odometer), 
+           nameof(GenericReportModel.Description), 
+           nameof(GenericReportModel.Cost),
+           nameof(GenericReportModel.Notes) };
+       public List<string> ExtraFields { get; set; } = new List<string>();
+    }
+}

Models/Report/VehicleHistoryViewModel.cs

@@ -4,6 +4,7 @@
     {
         public Vehicle VehicleData { get; set; }
         public List<GenericReportModel> VehicleHistory { get; set; }
+        public ReportParameter ReportParameters { get; set; }
         public string Odometer { get; set; }
         public string MPG { get; set; }
         public decimal TotalCost { get; set; }