Check file visibility conflicts check

1.7.2

- added: `Object visibility conflict` in file check
  - print in console when object have render activated but not viewport (& vice-versa)
  - Standalone ops "List Object Visibility Conflicts" (`gp.list_object_visibility`)
- added: `GP Modifier visibility conflict` in file check.
  - print in console when gp modifiers have render activated but not viewport (& vice-versa)
  - Standalone ops "List GP Modifiers Visibility Conflicts" (`gp.list_modifier_visibility`)
- code: show_message_box utils can now receive operator in sublist (if 3 element)

utils.py

@@ -715,12 +715,29 @@ def convert_attr(Attr):
 
 ## confirm pop-up message:
 def show_message_box(_message = "", _title = "Message Box", _icon = 'INFO'):
+    '''Show message box with element passed as string or list
+    if _message if a list of lists:
+        if sublist have 2 element:
+            considered a label [text,icon]
+        if sublist have 3 element:
+            considered as an operator [ops_id_name, text, icon]
+    '''
+
     def draw(self, context):
         for l in _message:
             if isinstance(l, str):
                 self.layout.label(text=l)
             else:
-                self.layout.label(text=l[0], icon=l[1])
+                if len(l) == 2: # label with icon
+                    self.layout.label(text=l[0], icon=l[1])
+                elif len(l) == 3: # ops
+                    self.layout.operator_context = "INVOKE_DEFAULT"
+                    self.layout.operator(l[0], text=l[1], icon=l[2], emboss=False) # <- highligh the entry
+                    
+                    ## offset pnale when using row...
+                    # row = self.layout.row()
+                    # row.label(text=l[1])
+                    # row.operator(l[0], icon=l[2])
     
     if isinstance(_message, str):
         _message = [_message]