Zombie tower autonomous behaviour

[dannystaple]

Utilise the camera and nerf launcher to aim at zombies with the nerf launcher, and fire a dart at them.
Create an app page with monitoring of the behavior, start and stop buttons.

We can potentially try using haar cascades, or some kind of image classifier, then figure out the launcher aim. We can initially treat the darts as shooting straight from the launcher muzzle.

Definition of ready

• Add Camera view to manual drive app #42
• Create Nerf Launcher control page - Zombie tower #45
• Test tower with printed test zombies to hit #61
• Design for how we'll do this

Definition of done

• PR merged with autonomous launched darts at zombies
• PR merged for Page to monitor and start/stop the launcher behaviour