Added the base structure for the individual visuals so development and testing can begin on their functionality.
Refactor(visual): Added async script loading. Now a visual must be requested through the Visual object. This acts as a check against double loading visuals.
Refactor(karma): Changed browser to Chrome.
Refactor(visual_test); Added tests to reflect the refactor of the visual class.
Chore(index): Added index.php files to subdirectories so users cannot access these directories directly.
Refactor(first_post): Added the "visual comment" at the bottom that tells notation what visuals should be loaded.