Urist's damage and health thing. (#10)

* Add prototype for temperature testing entity.

* Add Damageable, Destructible, Temperature. Add a prototype based on those.

* Works and cleaned up.

* Nerf

Content.Server/Interfaces/GameObjects/Components/Damage/IDamageableComponent.cs

@@ -0,0 +1,30 @@
+using Content.Server.GameObjects;
+using SS14.Shared.Interfaces.GameObjects;
+using System;
+
+namespace Content.Server.Interfaces.GameObjects
+{
+    public interface IDamageableComponent : IComponent
+    {
+        event EventHandler<DamageThresholdPassedEventArgs> DamageThresholdPassed;
+        ResistanceSet Resistances { get; }
+
+        /// <summary>
+        /// The function that handles receiving damage.
+        /// Converts damage via the resistance set then applies it
+        /// and informs components of thresholds passed as necessary.
+        /// </summary>
+        /// <param name="damageType">Type of damage being received.</param>
+        /// <param name="amount">Amount of damage being received.</param>
+        void TakeDamage(DamageType damageType, int amount);
+
+        /// <summary>
+        /// Handles receiving healing.
+        /// Converts healing via the resistance set then applies it
+        /// and informs components of thresholds passed as necessary.
+        /// </summary>
+        /// <param name="damageType">Type of damage being received.</param>
+        /// <param name="amount">Amount of damage being received.</param>
+        void TakeHealing(DamageType damageType, int amount);
+    }
+}