#80 Health Indicator

HealthRingTest
-Only final half of ring is currently rendered, likely a problem with the texture the material uses
-Once below half health, ring depletes as it should
-Health bar increases upon health drop pickup as well
#80 Health Indicator

HeathRingTest
-Made health bar blue
-Health bar still displays only half circle, but now half circle is full health instead of 50% health
HealthRingTest
-Now displays full circle
-Now only updates on damage callback/health drop pickup

Conflicts:
	Assets/Scripts/PerkSystem.cs
	Assets/Scripts/PlayerMovement.cs
Player and Boss Health Indicators
work on #80
- Fixes some remaining issues with the health indicators.
- Moves the code for updating the health indicators into the HealthRing script (rather than having PlayerMovement do it).
- Adds a health indicator to the boss.
- Removes the health display from the UI.
Health Indicator Rotation
work on #80
- Fixes the issue of the spider tank's health indicator rotation with the boss.
Merge remote-tracking branch 'origin/master' into health_indicator

Conflicts:
	Assets/Prefabs/Player.prefab
Merge pull request #99 from ModSquadWorkshop/health_indicator

Health indicator