Added support for custom repositories

src/HopFrame.Core/Config/RepositoryGroupConfig.cs

@@ -0,0 +1,13 @@
+using System.Reflection;
+
+namespace HopFrame.Core.Config;
+
+public class RepositoryGroupConfig(Type repoType, PropertyInfo keyProperty, HopFrameConfig config) : ITableGroupConfig {
+    public Type ContextType { get; } = repoType;
+
+    public List<TableConfig> Tables { get; } = new();
+
+    public HopFrameConfig ParentConfig { get; } = config;
+
+    public PropertyInfo KeyProperty { get; } = keyProperty;
+}