Updated gilded rose to utplsql version 3

Also rewrote the texttest

plsql/texttest.pks

@@ -0,0 +1,12 @@
+CREATE OR REPLACE PACKAGE texttest IS
+   -- %suite(texttest)
+   -- %suitepath(gilded_rose_tests)
+   -- %rollback(manual)
+   
+   -- %beforeall
+   PROCEDURE setup;
+   
+   -- %test(main test)
+   PROCEDURE main_test; 
+END texttest;
+/