Merge Request for Issue/3 Added game event loggers for the four types of basic value game events.

Closes #3 (closed)

Boolean, Float, Int, and String Game Events have matching loggers now

Event Logger/Scriptable Variables/BooleanGameEventLogger.cs

+using UnityEngine;
+using Shared.ScriptableVariables;
+
+namespace Shared.EventLog {
+  // Logs a boolean game event when it is raised
+  // Depends on ScriptableVariable package
+  public class BooleanGameEventLogger : BooleanGameEventListener {
+    [Tooltip("The event log to add the event trigger log to")]
+    public EventLog eventLog;
+    [Tooltip("The custom key to use in the event log (if not set, the key will be the event name itself)")]
+    public string customKey;
+    [Tooltip("The custom format of the event value output (if not set, the value will be the ToString() of the value)")]
+    public string customValueFormat;
+
+    //---------------------------------------------------------------------------
+    // Overridden event listening function to add the event to the event log
+    public override void OnEventRaised(bool value) {
+      eventLog.Add(string.IsNullOrEmpty(customKey) ? $"{eventToListenTo.name} Triggered" : customKey, !string.IsNullOrEmpty(customValueFormat) ? string.Format(customValueFormat, value) : value.ToString());
+      base.OnEventRaised(value);
+    }
+  }
+}