2537 Complex Vector Oscillator (256/512) Lanes Can Drift Apart Over Time (#2538)

* #2535 Heterodyne Channelizer enhancements and corrections.

* #2537 Complex vector oscillator SIMD lane drift.

Realigns the SIMD lanes every 262,144 samples. At frequencies where the
rotation for a set of lanes is nearly a whole or half turn, rounding affects
each lane differently and the lanes drift apart until the next frequency
change, producing spurs at multiples of the sample rate divided by the lane
count.  Lane phase error at 3125 Hz with a 50 kHz sample rate was about -38 dBc
after one hour and is now about -83 dBc with 16 lanes and -73 dBc with 8 lanes.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* #2537 test updates

* #2537 test updates

---------

Co-authored-by: denny <dennis.sheirer@gmail.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

src/main/java/io/github/dsheirer/buffer/NativeSampleDelayBuffer.java

@@ -116,7 +116,8 @@ public class NativeSampleDelayBuffer implements Listener<INativeBuffer>
             actionRequest = mActionQueue.poll();
         }
 
-        mBroadcaster.receive(samples);
+        //The delay queue stores the unconverted buffer since it's more compact than the converted samples
+        mBroadcaster.receive(mBroadcaster.getListenerCount() > 1 ? new SharedNativeBuffer(samples) : samples);
 
         //Store the new buffer in the delay queue and increment the pointer
         mDelayBuffer[mDelayBufferPointer++] = samples;