Add FTL destinations (#9685)

Content.Shared/Shuttles/Systems/SharedShuttleSystem.cs

@@ -4,3 +4,31 @@ public abstract partial class SharedShuttleSystem : EntitySystem
 {
 
 }
+
+[Flags]
+public enum FTLState : byte
+{
+    Invalid = 0,
+
+    /// <summary>
+    /// A dummy state for presentation
+    /// </summary>
+    Available = 1 << 0,
+
+    /// <summary>
+    /// Sound played and launch started
+    /// </summary>
+    Starting = 1 << 1,
+
+    /// <summary>
+    /// When they're on the FTL map
+    /// </summary>
+    Travelling = 1 << 2,
+
+    /// <summary>
+    /// Approaching destination, play effects or whatever,
+    /// </summary>
+    Arriving = 1 << 3,
+    Cooldown = 1 << 4,
+}
+