Fix AESBinaryManager temporary file management

AESBinaryManager uses Framework.trackFile but uses as temporary directory a subdirectory of the binaries root which is protected using FileEventTracker.registerProtectedPath.

This causes temporary files to not be deleted, and warnings in the logs:

WARN  [FileEventTracker$SafeFileDeleteStrategy] Protect file /opt/nuxeo/nxserver/data/binaries/tmp/bin_585290628544667493.tmp from deletion : check usage of Framework.trackFile