This bbclass prepares for archiving original source.
If original source is tarball, then copy this tarball to
${DEPLOY_DIR}/sources.
If original source is dirctory, then archive this directory to
tarball
[YOCTO #1977]
(From OE-Core rev: bc18dfdf42c8ece353a580671502ad79d37fa476)
Signed-off-by: Xiaofeng Yan <xiaofeng.yan@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>