console: add console task
console: add console task

Log the sol console of every target to a file in the archive dir.

yghannam/teuthology,t-miyamae/teuthology,robbat2/teuthology,robbat2/teuthology,dmick/teuthology,ivotron/teuthology,caibo2014/teuthology,yghannam/teuthology,SUSE/teuthology,ktdreyer/teuthology,ivotron/teuthology,SUSE/teuthology,t-miyamae/teuthology,dmick/teuthology,dmick/teuthology,ceph/teuthology,SUSE/teuthology,caibo2014/teuthology,ceph/teuthology,dreamhost/teuthology,tchaikov/teuthology,zhouyuan/teuthology,tchaikov/teuthology,michaelsevilla/teuthology,zhouyuan/teuthology,ktdreyer/teuthology,dreamhost/teuthology,michaelsevilla/teuthology