Feat: Add StringBuilderPoolPolicy for object pooling

Author: AnnaSasDev

src/CodeOfChaos.Extensions.ObjectPool/StringBuilderPoolPolicy.cs

@@ -0,0 +1,17 @@
+// ---------------------------------------------------------------------------------------------------------------------
+// Imports
+// ---------------------------------------------------------------------------------------------------------------------
+using Microsoft.Extensions.ObjectPool;
+using System.Text;
+
+namespace CodeOfChaos.Extensions.ObjectPool;
+// ---------------------------------------------------------------------------------------------------------------------
+// Code
+// ---------------------------------------------------------------------------------------------------------------------
+public class StringBuilderPoolPolicy : IPooledObjectPolicy<StringBuilder> {
+    public StringBuilder Create() => new();
+    public bool Return(StringBuilder obj) {
+        obj.Clear();
+        return obj.Length == 0;
+    }
+}