[navigator] Tone Down traffic warnings

- add unit tests for adsb conflict detection
- move adsb conflict detection to lib/adsb and adsb conflict class
- use containers/Array.hpp for buffer array
- expand fake_traffic

src/modules/navigator/navigator_params.c

@@ -128,23 +128,20 @@ PARAM_DEFINE_FLOAT(NAV_MC_ALT_RAD, 0.8f);
 PARAM_DEFINE_INT32(NAV_TRAFF_AVOID, 1);
 
 /**
- * Set NAV TRAFFIC AVOID RADIUS MANNED
+ * Set NAV TRAFFIC AVOID horizontal distance
  *
- * Defines the Radius where NAV TRAFFIC AVOID is Called
- * For Manned Aviation
+ * Defines a crosstrack horizontal distance
  *
  * @unit m
  * @min 500
  *
  * @group Mission
  */
-PARAM_DEFINE_FLOAT(NAV_TRAFF_A_RADM, 500);
+PARAM_DEFINE_FLOAT(NAV_TRAFF_A_HOR, 500);
 
 /**
- * Set NAV TRAFFIC AVOID RADIUS
+ * Set NAV TRAFFIC AVOID vertical distance
  *
- * Defines the Radius where NAV TRAFFIC AVOID is Called
- * For Unmanned Aviation
  *
  * @unit m
  * @min 10
@@ -152,7 +149,20 @@ PARAM_DEFINE_FLOAT(NAV_TRAFF_A_RADM, 500);
  *
  * @group Mission
  */
-PARAM_DEFINE_FLOAT(NAV_TRAFF_A_RADU, 10);
+PARAM_DEFINE_FLOAT(NAV_TRAFF_A_VER, 500);
+
+/**
+ * Estimated time until collision
+ *
+ * Minimum acceptable time until collsion.
+ * Assumes constant speed over 3d distance.
+ *
+ * @unit s
+ * @min 1
+ * @max 900000000
+ * @group Mission
+ */
+PARAM_DEFINE_INT32(NAV_TRAFF_COLL_T, 60);
 
 /**
  * Force VTOL mode takeoff and land