(Reuters) -West Indies clinched the Botham-Richards Trophy with an emphatic 10-wicket victory over England in the deciding test on Sunday, a result that few saw coming after the hosts’ mediocre performances in the first two tests. After gratefully escaping with draws in Antigua and Barbados, brilliant solo performances by Joshua Da Silva with the bat and Kyle Mayers with the ball were largely the difference between the two teams in the deciding Grenada test. An unbeaten first-innings century by wicketkeeper Da Silva gave West Indies a handy lead on Saturday, before Mayers rammed home the advan…