Add Config locking and caching

Toolkit.Foundation/ConfigurationLock.cs

@@ -0,0 +1,36 @@
+namespace Toolkit.Foundation;
+
+public static class ConfigurationLock
+{
+    private static readonly ReaderWriterLockSlim readerWriterLock = new();
+
+    public static IDisposable EnterRead()
+    {
+        readerWriterLock.EnterReadLock();
+        return new ConfigurationReaderLockDisposer(readerWriterLock);
+    }
+
+    public static IDisposable EnterWrite()
+    {
+        readerWriterLock.EnterWriteLock();
+        return new ConfigurationWriterLockDisposer(readerWriterLock);
+    }
+
+    private class ConfigurationWriterLockDisposer(ReaderWriterLockSlim lockSlim) : 
+        IDisposable
+    {
+        public void Dispose()
+        {
+            lockSlim.ExitWriteLock();
+        }
+    }
+
+    private class ConfigurationReaderLockDisposer(ReaderWriterLockSlim lockSlim) :
+        IDisposable
+    {
+        public void Dispose()
+        {
+            lockSlim.ExitReadLock();
+        }
+    }
+}