core-image-basic / packagegroup-core-basic: rename to *-full-cmdline

core-image-basic / packagegroup-core-basic: rename to *-full-cmdline

This more accurately represents what this image and packagegroup are
intended to provide (a more complete command-line environment similar
to what you would find on a traditional Linux system), and avoids
confusion with the similarly named core-image-base and
packagegroup-base.

Fixes [YOCTO #2424].

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>