Add foundation

Toolkit.Foundation/ConfigurationReader.cs

@@ -0,0 +1,33 @@
+namespace Toolkit.Foundation;
+
+public class ConfigurationReader<TConfiguration>(IConfigurationSource<TConfiguration> source,
+    IConfigurationFactory<TConfiguration> factory) :
+    IConfigurationReader<TConfiguration>
+    where TConfiguration :
+    class
+{
+    public TConfiguration Read()
+    {
+        if (source.TryGet(out TConfiguration? value))
+        {
+            if (value is TConfiguration configuration)
+            {
+                return configuration;
+            }
+        }
+
+        return (TConfiguration)factory.Create();
+    }
+
+    public bool TryRead(out TConfiguration? configuration)
+    {
+        if (source.TryGet(out TConfiguration? value) && value is not null)
+        {
+            configuration = value;
+            return true;
+        }
+
+        configuration = default;
+        return false;
+    }
+}