By Gloria Dickie and Kate Abnett SHARM EL-SHEIKH, Egypt (Reuters) -Delegates from nearly 200 countries kicked off the U.N. climate summit in Egypt on Sunday with an agreement to discuss compensating poor nations for mounting damage linked to global warming, placing the controversial topic on the agenda for the first time since climate talks began decades ago. The agreement set a constructive tone for the COP27 summit in the seaside resort town of Sharm el-Sheikh, where governments hope to keep alive a goal to avert the worst impacts of planetary warming even as a slew of crises – from a land w…