Added test_rawcopy_plugin_qemu test case and wks template.
This test builds ext4 rootfs image, copies it to the root
partition of the wic image using rawcopy plugin and
boots wic image in qemu.
[YOCTO #10618]
(From OE-Core rev: db1f511228e26aaeeff452427637942747bbf42b)
Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Ed Bartosh