Introduce seperate profiles for osgi #46
Description
We introduced OSGI functionality with #38 to make the core-utils lib compatible with liferay 7.
However to allow for an independent backward compatible deployment it would make sense to have distinct osgi and non-osgi profiles in the pom.xml. (see https://github.com/qbicsoftware/offer-manager-2-portlet/blob/master/pom.xml as an example)
This would allow us to only set the dependencies necessary for the seperate usages.