Count quotes in document statistics as well.

Currently any quote counts as a single character.

https://www.mail-archive.com/lyx-devel@lists.lyx.org/msg219697.html

src/insets/InsetQuotes.cpp

@@ -1021,4 +1021,11 @@ string InsetQuotes::contextMenuName() const
 	return "context-quote";
 }
 
+
+pair<int, int> InsetQuotes::isWords() const
+{
+	//one character from the statistics perspective
+	return std::pair<int,int>(1, 0);
+}
+
 } // namespace lyx

src/insets/InsetQuotes.h

@@ -173,6 +173,8 @@ public:
 
 	/// Returns the current quote type
 	std::string getType() const;
+	///
+	std::pair<int, int> isWords() const override;
 
 private:
 	///