Generated new code and added initial data handling

BlendFile/DNA/SequencerMaskModifierData.cs

@@ -17,6 +17,9 @@ namespace BlendFile.DNA {
     public struct SequencerMaskModifierData {
         [DNAFieldAttribute(0, "SequenceModifierData", "modifier", 112)]
         public SequenceModifierData modifier;
+        public SequencerMaskModifierData() {
+            this.modifier = default;
+        }
         public SequencerMaskModifierData(SequenceModifierData modifier) {
             this.modifier = modifier;
         }