Support for "ignoring property"

Dapper.Rainbow/Dapper.Rainbow.csproj

@@ -41,6 +41,7 @@
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Database.cs" />
+    <Compile Include="IgnorePropertyAttribute.cs" />
     <Compile Include="Snapshotter.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="SqlCompactDatabase.cs" />

Dapper.Rainbow/Database.cs

@@ -129,7 +129,12 @@ internal static List<string> GetParamNames(object o)
                     paramNames = new List<string>();
                     foreach (var prop in o.GetType().GetProperties(BindingFlags.GetProperty | BindingFlags.Instance | BindingFlags.Public))
                     {
-                        paramNames.Add(prop.Name);
+                        var attribs = prop.GetCustomAttributes(typeof(IgnorePropertyAttribute), true);
+                        var attr = attribs.FirstOrDefault() as IgnorePropertyAttribute;
+                        if (attr==null || (attr != null && !attr.Value))
+                        {
+                            paramNames.Add(prop.Name);
+                        }                        
                     }
                     paramNameCache[o.GetType()] = paramNames;
                 }

Dapper.Rainbow/IgnorePropertyAttribute.cs

+using System;
+
+namespace Dapper
+{
+    [AttributeUsage(AttributeTargets.Property, AllowMultiple = true)]
+    public class IgnorePropertyAttribute : Attribute
+    {
+        public IgnorePropertyAttribute(bool ignore)
+        {
+            Value = ignore;
+        }
+
+        public bool Value { get; set; }
+    }
+}