Health bar and player management refined

Assets/Prefabs/Player.prefab

@@ -100,7 +100,7 @@ GameObject:
   - component: {fileID: -5768905494704828194}
   m_Layer: 0
   m_Name: Player
-  m_TagString: Player
+  m_TagString: Untagged
   m_Icon: {fileID: 0}
   m_NavMeshLayer: 0
   m_StaticEditorFlags: 0
@@ -411,3 +411,5 @@ MonoBehaviour:
   m_EditorClassIdentifier: 
   teleportPoint: {x: 0, y: 0}
   teleportTag: Teleporter
+  playerTag: Player
+  isPlatform: 1