Lyft said Friday that it is setting up its own unit to develop autonomous vehicle technology, but its approach will be different from other companies and partnerships working on self-driving cars. The San Francisco-based ride-hailing service said it will open its network, inviting automakers and tech companies to use it to haul passengers in their self-driving vehicles and gather data. It may even share computer software and sensor technology. Raj Kapoor, the company’s chief strategy