Add ignored cameras regex to command-line arguemnts (#849)

This adds a regex that ignores cameras if they match it, for if you have another piece of software running that needs a second camera, or if you have a webcam in your laptop that cscore hates.

photonlib-java-examples/simposeest/src/main/java/frc/robot/DrivetrainPoseEstimator.java

@@ -100,7 +100,9 @@ public class DrivetrainPoseEstimator {
         m_poseEstimator.resetPosition(gyro.getRotation2d(), leftDist, rightDist, pose);
     }
 
-    /** @return The current best-guess at drivetrain position on the field. */
+    /**
+     * @return The current best-guess at drivetrain position on the field.
+     */
     public Pose2d getPoseEst() {
         return m_poseEstimator.getEstimatedPosition();
     }