Libraries

This change looks dramatic, but it's just separating out the already-split namespaces into separate top-level folders. In theory, every single one could be built into their own Nuget package. `SabreTools.Serialization` still builds the normal Nuget package that is used by all other projects and includes all namespaces.

SabreTools.Serialization.CrossModel/BaseMetadataSerializer.cs

@@ -0,0 +1,20 @@
+using SabreTools.Data.Models.Metadata;
+
+namespace SabreTools.Serialization.CrossModel
+{
+    /// <summary>
+    /// Base class for <see cref="MetadataFile"/> cross-model serializers
+    /// </summary>
+    /// <typeparam name="TModel">Model convertable to <see cref="MetadataFile"/></typeparam>
+    public abstract class BaseMetadataSerializer<TModel> : ICrossModel<TModel, MetadataFile>
+    {
+        /// <inheritdoc/>
+        public bool Debug { get; set; } = false;
+
+        /// <inheritdoc/>
+        public abstract TModel? Deserialize(MetadataFile? obj);
+
+        /// <inheritdoc/>
+        public abstract MetadataFile? Serialize(TModel? obj);
+    }
+}