When GCIB report is available check BDS is enabled

Author: Douglasdc3

mode-s/src/main/java/aero/t2s/modes/decoder/df/bds/Bds21.java

@@ -6,10 +6,6 @@
 public class Bds21 extends Bds {
     @Override
     public boolean attemptDecode(Track track, short[] data) {
-        if (track.getCapabilityReport().isAvailable() && !track.getCapabilityReport().isBds21()) {
-            return false;
-        }
-
         boolean aircraftRegistrationStatus = (data[4] & 0b10000000) != 0;
         boolean airlineRegistrationStatus = (data[9] & 0b00010000) != 0;
 

mode-s/src/main/java/aero/t2s/modes/decoder/df/bds/Bds50.java

@@ -135,7 +135,7 @@ public boolean attemptDecode(Track track, short[] data) {
         if (!statusRollAngle && (isLeftWingDown || rollAngle != 0)) {
             return false;
         }
-        if (statusRollAngle && Math.abs(rollAngle) > 50) {
+        if (statusRollAngle && (Math.abs(rollAngle) > 50 || Math.abs((Math.abs(track.getRollAngle()) - rollAngle)) > 30)) {
             return false;
         }