Created an API in the 'Dao.NewParser.LexBuilder' monad for retrieving a token ID by it's 'Dao.String.UStrType' identifier. This will allow programmers to build more flexible tokenizers that can create a token using 'Dao.NewParser.rxToken' or 'Dao.NewParser.rxEmptyToken' at arbitrary locations in the 'Dao.NewParser.Regex' expression for a lexer.
Bug fix: corrected several mistakes in the tokenizer and a the last remaining mistakes in the parser regarding date, time, and data expressions.