Blenloader: call blendRead and blendWrite of modifiers when available

This is part of T76372.

source/blender/blenloader/intern/readfile.c

@@ -5579,8 +5579,11 @@ static void direct_link_modifiers(BlendDataReader *reader, ListBase *lb, Object
       md = modifier_replace_with_fluid(reader->fd, ob, lb, md);
       is_allocated = true;
     }
+
+    const ModifierTypeInfo *mti = BKE_modifier_get_info(md->type);
+
     /* if modifiers disappear, or for upward compatibility */
-    if (NULL == BKE_modifier_get_info(md->type)) {
+    if (mti == NULL) {
       md->type = eModifierType_None;
     }
 
@@ -5884,6 +5887,10 @@ static void direct_link_modifiers(BlendDataReader *reader, ListBase *lb, Object
         direct_link_curveprofile(reader, bmd->custom_profile);
       }
     }
+
+    if (mti->blendRead != NULL) {
+      mti->blendRead(reader, md);
+    }
   }
 }
 

source/blender/blenloader/intern/writefile.c

@@ -1839,6 +1839,10 @@ static void write_modifiers(BlendWriter *writer, ListBase *modbase)
         write_CurveProfile(writer, bmd->custom_profile);
       }
     }
+
+    if (mti->blendWrite != NULL) {
+      mti->blendWrite(writer, md);
+    }
   }
 }