Fix libpq parsing and refactors/code cleanup

pgLabII.PgUtils/ConnectionStrings/Pq/PqConnectionStringTokenizer.cs

@@ -67,12 +67,6 @@ public class PqConnectionStringTokenizer : IPqConnectionStringTokenizer
     {
         while (position < input.Length && char.IsWhiteSpace(input[position]))
             position++;
-        // If a semicolon is encountered between pairs (which is not valid in libpq),
-        // treat as immediate EOF so parser stops and leaves trailing data unparsed.
-        if (position < input.Length && input[position] == ';')
-        {
-            position = input.Length; // force EOF
-        }
     }
 
     private string UnquotedString(bool forKeyword)