npm's package.json supports two types of dependencies -
optionalDependencies and dependencies; in the code for creating a recipe
from a non-npm source (e.g. a git repository) we were not handling
optionalDependencies and thus when pointed at a node.js application
outside of npm we weren't taking care of all dependencies.
Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
