First step at detecting dollar quoted strings. Dollar quotes

are now recognized by the lexical analyzer.

Plan is to let the parser decide how to handle the content.

src/pglab/SqlSyntaxHighlighter.h

@@ -28,6 +28,7 @@ private:
 	QTextCharFormat m_quotedStringFormat;
 	QTextCharFormat m_typeFormat;
 	QTextCharFormat m_quotedIdentifierFormat;
+    QTextCharFormat m_parameterFormat;
 
 	t_SymbolSet m_typeNames;
 };