Support 7z archives in the registry

[DropSnorz]

OwlPlug cannot unpack 7z archives like jpcima/adlplug from OAS registry.

Caused by: org.apache.commons.compress.archivers.StreamingNotSupportedException: The 7z doesn't support streaming.
	at org.apache.commons.compress.archivers.ArchiveStreamFactory.createArchiveInputStream(ArchiveStreamFactory.java:474)
	at org.apache.commons.compress.archivers.ArchiveStreamFactory.createArchiveInputStream(ArchiveStreamFactory.java:418)
	at org.apache.commons.compress.archivers.ArchiveStreamFactory.createArchiveInputStream(ArchiveStreamFactory.java:401)
	at com.owlplug.core.utils.ArchiveUtils.uncompress(ArchiveUtils.java:94)

It's an apache commons-compress Known Limitation. Check COMPRESS-269