Add mdadm plugin / specs

Grab data on mdadm raid arrays in ohai
Use equals not be to deal with types
Merge branch 'OHAI-578'
Detect additional CPU strings that are KVM
Switch back to relative path and add specs
Consolidate spec
Merge branch 'OHAI-575'
Present all CPU flags on FreeBSD

Don’t toss the first set when we find a few more
Fix execution and add a spec
Add addition Freebsd CPU unit tests
Merge branch 'OHAI-568'
OHAI-568, OHAI-575, OHAI-578: Release notes