Phase II: Player Ammo

Objective: Visualize on screen the ammo count of the player in the form of current/max.

This feature is pretty straightforward to implement. Since there is already an ammo count from a previously added feature, I only need to provide the current ammo and compare it to the max ammo.

In the UIManager script, I create a private Serialized int named maxAmmo and set it to 15.