Add database table for iNES/NES 2.0 manually written information from headers.

Aaru.Database/Models/NesHeaderInfo.cs

@@ -0,0 +1,39 @@
+using System;
+using System.ComponentModel.DataAnnotations;
+using Aaru.CommonTypes.Enums;
+
+namespace Aaru.Database.Models;
+
+/// <summary>Information needed to rebuild an iNES/NES 2.0 header from a ROM hash</summary>
+public class NesHeaderInfo : BaseModel
+{
+    /// <summary>ROM hash</summary>
+    [StringLength(32)]
+    public string Sha256 { get; set; }
+    /// <summary>If <c>true</c> vertical mirroring is hard-wired, horizontal or mapper defined otherwise</summary>
+    public bool NametableMirroring { get; set; }
+    /// <summary>If <c>true</c> a battery is present</summary>
+    public bool BatteryPresent { get; set; }
+    /// <summary>If <c>true</c> the four player screen mode is hardwired</summary>
+    public bool FourScreenMode { get; set; }
+    /// <summary>Mapper number (NES 2.0 when in conflict)</summary>
+    public ushort Mapper { get; set; }
+    /// <summary>Console type</summary>
+    public NesConsoleType ConsoleType { get; set; }
+    /// <summary>Submapper number</summary>
+    public byte Submapper { get; set; }
+    /// <summary>Timing mode</summary>
+    public NesTimingMode TimingMode { get; set; }
+    /// <summary>Vs. PPU type</summary>
+    public NesVsPpuType VsPpuType { get; set; }
+    /// <summary>Vs. hardware type</summary>
+    public NesVsHardwareType VsHardwareType { get; set; }
+    /// <summary>Extended console type</summary>
+    public NesExtendedConsoleType ExtendedConsoleType { get; set; }
+    /// <summary>Default expansion device</summary>
+    public NesDefaultExpansionDevice DefaultExpansionDevice { get; set; }
+    /// <summary>Date when model has been added to the database</summary>
+    public DateTime AddedWhen { get; set; }
+    /// <summary>Date when model was last modified</summary>
+    public DateTime ModifiedWhen { get; set; }
+}