MFC r293443:

• Make test-1.sh into a TAP testable testcase
• Delete test-2.sh as it was an incomplete testcase, and the contents were basically a subset of test-1.sh
• Add a conf.sh file for executing common functions with geom_uzip
• Use attach_md for attaching md(4) devices
• Don't hardcode /tmp for temporary files, which violates the kyua sandbox