lineTo 
  Adds a line segment with tangent heading interpolation.
Parameters
endPosition 
end position
fun lineTo(endPosition: Vector2d, velConstraintOverride: TrajectoryVelocityConstraint, accelConstraintOverride: TrajectoryAccelerationConstraint = builder.baseAccelConstraint): TrajectoryCommandBuilder
Adds a line segment with tangent heading interpolation.
Parameters
endPosition 
end position
constraintsOverride 
segment-specific constraints