[twitter] add 'quotes' extractor (#5262)

https://github.com/mikf/gallery-dl/issues/5262#issuecomment-1981571924

It's implemented as a search for 'quoted_tweet_id:…' on Twitter.

test/results/twitter.py

@@ -218,7 +218,7 @@ __tests__ = (
     "#category": ("", "twitter", "hashtag"),
     "#class"   : twitter.TwitterHashtagExtractor,
     "#pattern" : twitter.TwitterSearchExtractor.pattern,
-    "#sha1_url": "3571c3a53b7647ea35517041fdc17f77ec5b2cb9",
+    "#urls"    : "https://twitter.com/search?q=%23nature",
 },
 
 {
@@ -537,6 +537,14 @@ The Washington Post writes, "Three weeks after the toxic train derailment in Ohi
 "The analysis by Texas A&M University seems to contradict statements by state and federal regulators that air near the crash site is completely safe, despite residents complaining about rashes, breathing problems and other health effects." Your reaction.""",
 },
 
+{
+    "#url"     : "https://twitter.com/playpokemon/status/1263832915173048321/quotes",
+    "#category": ("", "twitter", "quotes"),
+    "#class"   : twitter.TwitterQuotesExtractor,
+    "#pattern" : twitter.TwitterSearchExtractor.pattern,
+    "#urls"    : "https://twitter.com/search?q=quoted_tweet_id:1263832915173048321",
+},
+
 {
     "#url"     : "https://twitter.com/supernaturepics/photo",
     "#category": ("", "twitter", "avatar"),