Remove dependency to the production image by creating separate sysroot
for test assets alongside with a test image Test.img.
Signed-off-by: Marcin Smoczyński <smoczynski.marcin@gmail.com>
Add ability to change an image name in the vfs code by decoupling vfs
from a so-called board code.
Introduce platforms as a hardware and os abstraction layer for product
code.
Signed-off-by: Marcin Smoczyński <smoczynski.marcin@gmail.com>