This sub-command creates a bbappend for the specified target and prints the
path to the bbappend. The -w argument, as with some of the other recipetool
commands, will make a version-independent bbappend.
Example usage: recipetool newappend meta-mylayer virtual/kernel
[YOCTO #7964]
Signed-off-by: Christopher Larson <kergoth@gmail.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>