wic: get rid of scripts/lib/image

Moved content of scripts/lib/image/ to scripts/lib/wic as
one directory with the same name as a tool is self-explanatory
and less confusing than two.

(From OE-Core rev: 5dc02d572794298b3362378cea3d7da654456c44)

Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

scripts/wic

@@ -54,8 +54,8 @@ else:
 
 from wic.utils.oe.misc import get_bitbake_var, BB_VARS
 from wic.utils.errors import WicError
-from image import engine
-from image import help as hlp
+from wic import engine
+from wic import help as hlp
 
 def rootfs_dir_to_args(krootfs_dir):
     """