Adding a test for ODBC/XLS.

Currently only for ASCII data.
TODO: add tests for extended letters (e.g. Latin1, Cyrillic, etc).


added:
  mysql-test/suite/connect/r/odbc_xls.result
  mysql-test/suite/connect/std_data/contacts.xls
  mysql-test/suite/connect/t/odbc_xls.test

mysql-test/suite/connect/r/odbc_xls.result

+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `Name` varchar(256) DEFAULT NULL,
+  `Description` varchar(256) DEFAULT NULL
+) ENGINE=CONNECT DEFAULT CHARSET=latin1 `TABLE_TYPE`=ODBC `OPTION_LIST`='info=yes'
+CREATE TABLE contact (Nom VARCHAR(128), Fonction VARCHAR(128), Company VARCHAR(128), Repertoire VARCHAR(30)) ENGINE=CONNECT TABLE_TYPE=ODBC CONNECTION='DSN=ConnectEngineXLS;DBQ=C:/Users/bar/maria-bzr/maria-10.0-connect/bld/mysql-test/var/mysqld.1/data//test/contacts.xls';;
+SELECT Nom, Fonction FROM contact WHERE Repertoire='ascii';
+Nom	Fonction
+Du Halgouet Tanguy	
+Vandamme Anna	
+Thomas Willy	
+Thomas Dominique	
+Lemonnier Nathalie	Directeur Marketing Client
+Menseau Eric	
+DROP TABLE contact;

mysql-test/suite/connect/t/odbc_xls.test

+--disable_query_log
+CREATE TABLE t1 ENGINE=CONNECT TABLE_TYPE=ODBC OPTION_LIST='info=yes';
+if (!`SELECT count(*) FROM t1 WHERE Name='ConnectEngineXLS'`)
+{
+  Skip Need ODBC data source ConnectEngineXLS;
+}
+SHOW CREATE TABLE t1;
+DROP TABLE t1;
+--enable_query_log
+
+let $MYSQLD_DATADIR= `select @@datadir`;
+
+--copy_file $MYSQL_TEST_DIR/suite/connect/std_data/contacts.xls $MYSQLD_DATADIR/test/contacts.xls
+
+--eval CREATE TABLE contact (Nom VARCHAR(128), Fonction VARCHAR(128), Company VARCHAR(128), Repertoire VARCHAR(30)) ENGINE=CONNECT TABLE_TYPE=ODBC CONNECTION='DSN=ConnectEngineXLS;DBQ=$MYSQLD_DATADIR/test/contacts.xls';
+SELECT Nom, Fonction FROM contact WHERE Repertoire='ascii';
+DROP TABLE contact;
+
+--remove_file $MYSQLD_DATADIR/test/contacts.xls