user-space rshim driver rshim-2.0.1

This tag fixes several issues reported when trying to upstream the package into fedora.

• Rename bfrshim to rshim
• Remove rshim.spec since it's auto-generated from rshim.spec.in
• Fix warnings reported by coverity
• Add rhel/rshim.spec.in for fedora
• Move rshim to sbin and move man page to man8