Change generated "app" directory to "osapp" directory...

[markweitzel]

When the todo example is generated, the directory created that contains the app.xml and the other artifacts is "apps". However, this does not match the path that is resolved in the url, which is osapp, .e.g. http://host:port/osapp/todo/todos.html. This should be changed to provide consistency with between the code structure and the URL path that is used to resolve the artifacts.

[matthewmccullough]

@markweitzel Is your proposed change of apps ➡️ osapp outside this SDK? I see the results of jive-sdk-service/generator/examples/example-todo/apps but I don't see the source code that produces that example here in the SDK.

Should we just rename the apps ➡️ osapp within the current version of the project (here) for now as a short term solution?