Convert last long key to property

SabreTools.Data.Models/Metadata/DictionaryBase.cs

@@ -31,6 +31,7 @@ namespace SabreTools.Data.Models.Metadata
         /// <summary>
         /// Read a key as a bool, returning null on error
         /// </summary>
+        /// TODO: Determine if this can be removed
         public bool? ReadBool(string key)
         {
             if (!ValidateReadKey(key))
@@ -52,6 +53,7 @@ namespace SabreTools.Data.Models.Metadata
         /// <summary>
         /// Read a key as a double, returning null on error
         /// </summary>
+        /// TODO: Determine if this can be removed
         public double? ReadDouble(string key)
         {
             if (!ValidateReadKey(key))
@@ -82,6 +84,7 @@ namespace SabreTools.Data.Models.Metadata
         /// Read a key as a long, returning null on error
         /// </summary>
         /// <remarks>TODO: Add logic to convert SI suffixes and hex</remarks>
+        /// TODO: Determine if this can be removed
         public long? ReadLong(string key)
         {
             if (!ValidateReadKey(key))

SabreTools.Data.Models/Metadata/Rom.cs

@@ -11,6 +11,9 @@ namespace SabreTools.Data.Models.Metadata
         /// <remarks>(yes|no) "no"</remarks>
         public bool? Dispose { get; set; }
 
+        /// <remarks>ArchiveDotOrg.File</remarks>
+        public long? FileCount { get; set; }
+
         /// <remarks>bool; AttractMode.Row</remarks>
         public bool? FileIsAvailable { get; set; }
 
@@ -102,9 +105,6 @@ namespace SabreTools.Data.Models.Metadata
         /// <remarks>string; OfflineList.FileRomCRC</remarks>
         public const string ExtensionKey = "extension";
 
-        /// <remarks>long; ArchiveDotOrg.File</remarks>
-        public const string FileCountKey = "filecount";
-
         /// <remarks>string</remarks>
         public const string FlagsKey = "flags";