Add libtk-img package

Signed-off-by: Charles Steinkuehler <charles@steinkuehler.net>
bb.org: disable trousers/tpm-tools, sorry crypto cape, these need to be installed in a fully running system, not chroot...

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
Merge remote-tracking branch 'upstream/master' into MachineKit
Perform additional system configuration needed for LinuxCNC

Signed-off-by: Charles Steinkuehler <charles@steinkuehler.net>
Update desktop background

Signed-off-by: Charles Steinkuehler <charles@steinkuehler.net>