Major Front End Update

Yes, I know this all only works in Chrome right now. The more browser-
prolific version will be in a future update. Not detailing every itty
bitty change here (be at peace with git's history & diffs).

FE:
- Pulsar SoundCloud player directive
- Pulsar Three.js <canvas> directive
- Full-screen SoundCloud player with the "Music Molecule" 3D visualizer