Startup founders who pitched for Plug and Play’s batch four cohort take part in a selection day at UW’s CoMotion Labs. (Plug and Play Photo) Plug and Play Seattle selected 11 startups for the fourth batch of its accelerator program, bringing together a group of founders building everything from space-servicing robotic arms and data-center optical links to opioid-countering antibody therapeutics. The 12-week program kicks off today and runs throu…