add: add EncryptFieldAttribute

Obfuz/Packages/com.code-philosophy.obfuz/Editor/ObfusPasses/CleanUp/RemoveObfuzAttributesPass.cs

@@ -29,6 +29,7 @@ namespace Obfuz.ObfusPasses.CleanUp
                 return;
             var toRemove = new List<CustomAttribute>();
             customAttributes.RemoveAll("Obfuz.ObfuzIgnoreAttribute");
+            customAttributes.RemoveAll("Obfuz.EncryptFieldAttribute");
         }
 
         public override void Process()

Obfuz/Packages/com.code-philosophy.obfuz/Editor/ObfusPasses/FieldEncrypt/ConfigurableEncryptPolicy.cs

@@ -29,6 +29,14 @@ namespace Obfuz.ObfusPasses.FieldEncrypt
 
         public override bool NeedEncrypt(FieldDef field)
         {
+            if (MetaUtil.HasEncryptFieldAttribute(field))
+            {
+                return true;
+            }
+            if (MetaUtil.HasObfuzIgnoreAttribute(field) || MetaUtil.HasObfuzIgnoreAttribute(field.DeclaringType))
+            {
+                return false;
+            }
             var rule = _configParser.GetFieldRule(field);
             return rule != null;
         }

Obfuz/Packages/com.code-philosophy.obfuz/Editor/Utils/MetaUtil.cs

@@ -788,5 +788,10 @@ namespace Obfuz.Utils
         {
             return obj.CustomAttributes.Any(ca => ca.AttributeType.FullName == "System.Runtime.CompilerServices.CompilerGeneratedAttribute");
         }
+
+        public static bool HasEncryptFieldAttribute(IHasCustomAttribute obj)
+        {
+            return obj.CustomAttributes.Any(ca => ca.AttributeType.FullName == "Obfuz.EncryptFieldAttribute");
+        }
     }
 }

Obfuz/Packages/com.code-philosophy.obfuz/Runtime/EncryptFieldAttribute.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Obfuz
+{
+    [AttributeUsage(AttributeTargets.Field, Inherited = false, AllowMultiple = false)]
+    public class EncryptFieldAttribute : Attribute
+    {
+    }
+}

Obfuz/Packages/com.code-philosophy.obfuz/Runtime/EncryptFieldAttribute.cs.meta

@@ -0,0 +1,11 @@
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