Add Flags enum entry and update GetUnitTypeByAttributes method

- Added the Flags entry to the EntryUnitType enum to represent unit types with the Flags attribute.
- Updated the GetUnitTypeByAttributes method to check if the property is an enum and has the Flags attribute.

Author: Jason Becker

src/Moryx/Serialization/DefaultSerialization.cs

@@ -221,7 +221,7 @@ public virtual object ConvertValue(Type memberType, ICustomAttributeProvider att
                     return CollectionBuilder(memberType, currentValue, mappedEntry);
                 default:
                     var value = mappedEntry.Value.Current;
-                    if (value is null) 
+                    if (value is null)
                         return null;
 
                     try
@@ -251,6 +251,15 @@ public EntryUnitType GetUnitTypeByAttributes(ICustomAttributeProvider property)
         {
             var unitType = EntryUnitType.None;
 
+            // Check if the property is an enum and has the <see cref="System.FlagsAttribute"/>
+            if (property is PropertyInfo propertyInfo && propertyInfo.PropertyType.IsEnum)
+            {
+                if (propertyInfo.PropertyType.GetCustomAttributes(typeof(System.FlagsAttribute), false).Any())
+                {
+                    unitType = EntryUnitType.Flags;
+                }
+            }
+
             var passwordAttr = property.GetCustomAttribute<PasswordAttribute>();
             if (passwordAttr != null)
                 unitType = EntryUnitType.Password;

src/Moryx/Serialization/EntryConvert/EntryUnitType.cs

@@ -23,6 +23,10 @@ public enum EntryUnitType
         /// <summary>
         /// Unit directory
         /// </summary>
-        Directory
+        Directory,
+        /// <summary>
+        /// Unit with <see cref="System.FlagsAttribute"/>
+        /// </summary>
+        Flags,
     }
 }