add API to determine on foot missions

EDPlayerJournal/Mission.cs

@@ -255,6 +255,18 @@ public class Mission : IComparable<Mission> {
     /// </summary>
     public List<MissionFactionEffects> FactionEffects { get; set; } = new List<MissionFactionEffects>();
 
+    /// <summary>
+    /// Returns true if the name is an on foot mission.
+    /// </summary>
+    public bool IsOnFoot {
+        get {
+            if (string.IsNullOrEmpty(Name)) {
+                return false;
+            }
+
+            return Name.Contains("OnFoot");
+        }
+    }
 
     public bool IsPassengerMission {
         get {