Read: 4 min In April, Enbridge announced a $4-billion expansion of its Westcoast pipeline to boost natural gas transportation capacity. Enbridge’s public shareholders are not the only ones who stand to benefit. Last July, 36 First Nations in B.C. acquired a 12.5 per cent stake in the same pipeline system. That deal is one of many that reflects a shift in how Indigenous groups are participating in major projects, project insiders say. Across Can…