[listal] add 'image' & 'people' extractors (#1589 #8921)

* listal extractor
* add listal to init
* fix flake8 & formatting & extractor names/subcategories

* remove 're' import
* remove 'datetime' import
* update & simplify extractors
* update supportedsites
* add tests

---------

Co-authored-by: Mike Fährmann <mike_faehrmann@web.de>

test/results/listal.py

@@ -0,0 +1,47 @@
+# -*- coding: utf-8 -*-
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+
+from gallery_dl.extractor import listal
+
+
+__tests__ = (
+{
+    "#url"     : "https://www.listal.com/viewimage/29620846",
+    "#class"   : listal.ListalImageExtractor,
+    "#results" : "https://ilarge.lisimg.com/image/29620846/1030full-jim-carrey.jpg",
+
+    "author"    : "sinaia16",
+    "author_url": "https://sinaia16.listal.com",
+    "date"      : "dt:2024-07-18 18:50:00",
+    "extension" : "jpg",
+    "filename"  : "1030full-jim-carrey",
+    "height"    : 1037,
+    "id"        : "29620846",
+    "title"     : "Jim Carrey",
+    "url"       : "https://ilarge.lisimg.com/image/29620846/1030full-jim-carrey.jpg",
+    "width"     : 1030,
+},
+
+{
+    "#url"     : "https://www.listal.com/jim-carrey/pictures",
+    "#class"   : listal.ListalPeopleExtractor,
+    "#pattern" : r"https://i\w+\.lisimg\.com/image/\d+/\d+full-.+\.jpg",
+    "#range"   : "1-10",
+    "#count"   : 10,
+
+    "author"    : str,
+    "author_url": r"re:https://\w+.listal.com",
+    "date"      : "type:datetime",
+    "extension" : "jpg",
+    "filename"  : str,
+    "width"     : range(200, 2000),
+    "height"    : range(200, 2000),
+    "id"        : r"re:\d+",
+    "title"     : "Jim Carrey",
+    "url"       : r"re:https://.+",
+},
+
+)