Added framework xml documentation for all "exploration" events.

ObservatoryFramework/Files/Journal/Exploration/FSSDiscoveryScan.cs

@@ -1,11 +1,29 @@
 namespace Observatory.Framework.Files.Journal
 {
+    /// <summary>
+    /// Event generated when using the discovery scanner (honk) to initially scan system.
+    /// </summary>
     public class FSSDiscoveryScan : JournalBase
     {
+        /// <summary>
+        /// Name of the current system.
+        /// </summary>
         public string SystemName { get; init; }
+        /// <summary>
+        /// Unique ID of the current system.
+        /// </summary>
         public ulong SystemAddress { get; init; }
+        /// <summary>
+        /// Percentage of current system already scanned.
+        /// </summary>
         public float Progress { get; init; }
+        /// <summary>
+        /// Number of scannable bodies in system.
+        /// </summary>
         public int BodyCount { get; init; }
+        /// <summary>
+        /// Number of scannable non-body locations in system.
+        /// </summary>
         public int NonBodyCount { get; init; }
     }
 }