Provide capabilities to load native libraries in standalone

Users will need capabilities to load native libraries via JNI in their plugin. These libraries can be loaded only once per JVM. Loading these and running on distributed environment would work, however in local sandbox - the CDAP components and other programs run in the same JVM and we will need a solution for this use case.

One approach might be to provide a path where we load all the native libraries and make it available for all programs just in local sandbox.