[enh] add raise_for_httperror

check HTTP response:
* detect some comme CAPTCHA challenge (no solving). In this case the engine is suspended for long a time.
* otherwise raise HTTPError as before

the check is done in poolrequests.py (was before in search.py).

update qwant, wikipedia, wikidata to use raise_for_httperror instead of raise_for_status

searx/settings.yml

@@ -647,11 +647,6 @@ engines:
     shortcut : qwn
     categories : news
 
-  - name : qwant social
-    engine : qwant
-    shortcut : qws
-    categories : social media
-
 #  - name: library
 #    engine: recoll
 #    shortcut: lib
@@ -817,12 +812,13 @@ engines:
     # Or you can use the html non-stable engine, activated by default
     engine : youtube_noapi
 
-  - name : yggtorrent
-    engine : yggtorrent
-    shortcut : ygg
-    url: https://www2.yggtorrent.si/
-    disabled : True
-    timeout : 4.0
+  # tmp suspended: Cloudflare CAPTCHA
+  #- name : yggtorrent
+  #  engine : yggtorrent
+  #  shortcut : ygg
+  #  url: https://www2.yggtorrent.si/
+  #  disabled : True
+  #  timeout : 4.0
 
   - name : dailymotion
     engine : dailymotion