extend the waypoint data

BaseTypes.proto

@@ -13,8 +13,11 @@ message WindData {
 }
 
 message Waypoint {
-    string name = 1; // The waypoint's name
-    string pta  = 2; // The planned time of arrival (YYYY-MM-DD HH:MM:SS)
+    string name             = 1; // The waypoint's name
+    string pta              = 2; // The planned time of arrival (YYYY-MM-DD HH:MM:SS)
+    int32 altitude          = 3; // The target altitude
+    int32 indicatedAirspeed = 4; // The target indicated airspeed
+    int32 groundSpeed       = 5; // The target ground speed
 }
 
 message Dynamics {