SHAREHOLDER RIGHTS PLAN AGREEMENT DATED AS OF NOVEMBER 9, 1995 AND AMENDED AND RESTATED AS OF MAY 1, 1996, FEBRUARY 24, 1999, MAY 3, 2002, MAY 5, 2005, MAY 7, 2008, MAY 11, 2011, MAY 7, 2014, MAY 11, 2017 AND MAY 5, 2020 BETWEEN ENBRIDGE INC. AND...