[#321] add package that was missing to the exports in order for other json-unit-* bundles to work in OSGi
[#321] add package that was missing to the exports in order for other json-unit-* bundles to work in OSGi

Signed-off-by: Raymond Augé <365ed8f198099d0d7be69a289ff98f85e62ba00d@liferay.com>

lukas-krecan/JsonUnit,lukas-krecan/JsonUnit