Add weapon shooting sfx (#65)

#### Description
Added 4 sound clips that are played when a weapon is fired.

#### Tests
Played with simulated players to verify location based playback sounds oke

Author: zeroZshadow

CHANGELOG.md

@@ -5,6 +5,7 @@
 ### Added
 
 - `MetricsSendSystem.cs` now sends metrics for Frames Per Second (FPS) and Unity heap usage.
+- Weapon fire now has sound effects.
 
 ### Changed