Place pork roast in the slow cooker. Add liquid smoke, and sprinkle pork with salt. Cook on low 8 hours or on high 4 hours. 30 minutes before serving, Remove the pork from the slow cooker and shred with two forks.Preheat oven to 400. Spray a baking sheet generously with cooking spray. Lay wonton wrappers out on a flat surface. Put 3-4 tablespoons water in a small bowl. Spoon about 2 tablespoons of shredded pork into the center of each wonton. Top with 1-2 tablespoons broccoli slaw and some red onion slices. Wet your finger tips with the water, then pinch two opposite corners of each wonton together so they stick together. Place wonton tacos on prepared baking sheet in a single layer, not touching. Spray tacos generously with cooking spray. Bake 10-15 minutes until wontons get crisp and edges begin to brown.While the tacos are baking, prepare the sauce. Combine all sauce ingredients in a medium sauce pan and whisk over medium-high and bring to a boil. Reduce to simmer and allow to thicken until tacos are done baking.Top with cilantro. Drizzle sauce onto tacos, or serve as a dipping sauce.