fix: Only ever return one blob when blob tracking

Forgot to return after finding our first, largest blob during blob
tracking, meaning we'd possibly return many blobs even though
we can't do anything with that info.

Fixes #20

Author: qdot

RANSACApp/ransac.py

@@ -235,8 +235,8 @@ def blob_tracking_fallback(self):
       if yu > 0:
         out_y = max(0.0, min(1.0, yu))
 
-      output_tuple = (True, out_x, out_y, False)
       self.output_images_and_update(larger_threshold, EyeInformation(InformationOrigin.BLOB, out_x, out_y, False))
+      return
     self.output_images_and_update(larger_threshold, EyeInformation(InformationOrigin.BLOB, 0, 0, True))
     print('[INFO] BLINK Detected.')