Update redfam.article_generator use article status

To be able to filter articles by status of that article

Related Task: [https://fs.golderweb.de/index.php?do=details&task_id=89 FS#89]

lib/redfam.py

@@ -633,7 +633,9 @@ class RedFamWorker( RedFam ):
         # with wrong month abreviations in strptime
         locale.setlocale(locale.LC_ALL, 'de_DE.UTF-8')
 
-    def article_generator(self, filter_existing=None, filter_redirects=None ):
+    def article_generator(self, filter_existing=None, filter_redirects=None,
+                          exclude_article_status=[],
+                          onlyinclude_article_status=[] ):
         """
         Yields pywikibot pageobjects for articles belonging to this redfams
         in a generator
@@ -647,11 +649,22 @@ class RedFamWorker( RedFam ):
                                  set to False to get only redirectpages,
                                  unset/None results in not filtering
         @type  filter_redirects  bool/None
+
         """
         # Iterate over articles in redfam
         for article in self._articlesList:
             page = pywikibot.Page(pywikibot.Link(article), self.site)
 
+            # Exclude by article status
+            for status in exclude_article_status:
+                if self.article_has_status( status, title=article ):
+                    continue
+
+            # Only include by article status
+            for status in onlyinclude_article_status:
+                if not self.article_has_status( status, title=article ):
+                    continue
+
             # Filter non existing Pages if requested with filter_existing=True
             if filter_existing and not page.exists():
                 continue