bb-show: add -b/--brief argument

Signed-off-by: Christopher Larson <chris_larson@mentor.com>
bb-log: ignore handled bitbake exceptions

Signed-off-by: Christopher Larson <chris_larson@mentor.com>
Replace symlink with shell script for better sharing via cloud storage

Signed-off-by: Drew Moseley <drew_moseley@mentor.com>