Refactor UnpackContent to use Commons Compress and Zip4j

Updating the UnpackContent processor to support optional decryption of password-protected Zip files changed the implementation library from Apache Commons Compress to Zip4j. Although Zip4j supports most standard Zip operations, it does not currently support certain alternative compression algorithms, such as bzip2. Apache Commons Compress does not support decryption of password-protected Zip files.

In order to support the widest range of available Zip formats, UnpackContent should default to using Apache Commons Compress for Zip files, and use Zip4j when the processor is configured with the Password property.