Bug 57624: proper js resource loading in zero

* Merged mobile.zero.templates & mobile.zero.scripts into mobile.zero
* Added dependency on mobile.templates

TBD: should mobile.zero.styles be merged into it as well?
Or do we still require $out->addModuleStyles() call for
styles-only, followed by addModules() for the rest.

Change-Id: Ia880e778467e4b7277ed8564dfd37add56137ff6