Implementation of DynaBean that wraps a standard JavaBean
instance, so that DynaBean APIs can be used to access its properties,
though this implementation allows type conversion to occur when properties are set.
This means that (say) Strings can be passed in as values in setter methods and
this DynaBean will convert them to the correct primitive data types.
IMPLEMENTATION NOTE - This implementation does not
support the contains() and remove() methods.