[NPANDAY-480] Include system scope dependencies

Web roles and worker roles should include system scoped dependencies, as
these are often generated by the Visual Studio Addin for framework libraries
that have not been installed to a Maven repository and are installed to a
consistent location, including the Azure SDK itself.

git-svn-id: https://svn.apache.org/repos/asf/incubator/npanday/trunk@1513130 13f79535-47bb-0310-9956-ffa450edef68