dicty-footer style implementation: single files

Separate every component into its own file:

* `appDicty.module.js`: modules for the angular app
* `dicty.footer.controller.js`: the controller for the footer
* `dictyFooter.directive.js`: footer directive

* `testingdictyTesting.directive.js`: just a testing directive js file
* `archive.full.first.app.js`: keep the first working js directive,
just for pure sentimental reasons ;-)