Add match/unmatch() to data types. (#115)
Update tests for Bool.
Update tests for Int.
Update tests for Float.
Add tests for GeoPoint::match/unmatch().
Add tests for Text::match/unmatch().
Add tests for Vector<T>::match/unmatch().
Update a test for Column to use match().
Update tests for Table to use match().
Fix a bug of TextVector::match/unmatch(). (#115)
Update tests for Expression to use match/unmatch().
Enable additional tests for Expression.
Update Column to use match().