feat: added some YAML parsing methods

src/Nitride.Yaml/NitrideYamlEntityExtensions.cs

@@ -0,0 +1,45 @@
+using System;
+
+using Gallium;
+
+using Nitride.Contents;
+
+using YamlDotNet.Serialization;
+
+namespace Nitride.Yaml;
+
+public static class NitrideYamlEntityExtensions
+{
+    /// <summary>
+    /// Parses the entity text as a YAML file and returns the results.
+    /// </summary>
+    public static TType? GetYaml<TType>(
+        this Entity entity,
+        Action<DeserializerBuilder>? configure = null)
+    {
+        DeserializerBuilder builder = new();
+
+        configure?.Invoke(builder);
+
+        IDeserializer deserializer = builder.Build();
+
+        return entity.GetYaml<TType>(deserializer);
+    }
+
+    /// <summary>
+    /// Parses the entity text as a YAML file and returns the results.
+    /// </summary>
+    public static TType? GetYaml<TType>(
+        this Entity entity,
+        IDeserializer deserializer)
+    {
+        if (!entity.TryGet(out ITextContent content))
+        {
+            return default;
+        }
+
+        string text = content.GetText();
+
+        return deserializer.Deserialize<TType>(text);
+    }
+}