Add ReflectionExtensions for property lookup by column name

Introduced a static ReflectionExtensions class with a GetValueByColumnName extension method to retrieve property values by their [Column] attribute name. Also removed an unused folder reference from the project file.

src/ReC.Application/ReC.Application.csproj

@@ -25,7 +25,6 @@
 
   <ItemGroup>
     <Folder Include="Common\Behaviors\Action\" />
-    <Folder Include="Common\Options\DbModel\" />
   </ItemGroup>
 
 </Project>

src/ReC.Domain/Extensions/ReflectionExtensions.cs

@@ -0,0 +1,19 @@
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Reflection;
+
+namespace ReC.Domain.Extensions;
+
+public static class ReflectionExtensions
+{
+    /// <summary>
+    /// Gets the value of a property by its column name defined in <see cref="ColumnAttribute"/>.
+    /// Returns <c>null</c> if no property with the given column name exists.
+    /// </summary>
+    public static object? GetValueByColumnName(this object obj, string columnName)
+    {
+        var property = obj.GetType().GetProperties(BindingFlags.Public | BindingFlags.Instance)
+            .FirstOrDefault(p => p.GetCustomAttribute<ColumnAttribute>()?.Name == columnName);
+
+        return property?.GetValue(obj);
+    }
+}