Back in 1984, Tony Gwynn, Steve Garvey and the San Diego Padres used the energy from their home crowd at Jack Murphy Stadium to rally from a 2-0 deficit in the National League Championship Series and stun Ryan Sandberg, Gary Matthews and the Chicago Cubs to reach their first World Series. Now, Fernando Tatis Jr., Manny Machado and the Padres hope to tap that home energy once again when they open a Wild Card Series against NL MVP frontrunner Pete…