Flower Mound hopes a switch from grass to turf at a local athletic field complex will prevent game cancellations and reduce the park’s costs. Work started in August on the $1.5 million project at Chinn Chapel Soccer Complex, which also includes adding a new scoreboard and goalposts, as well as new fencing and landscaping. Only Field No. 5, the multipurpose field, will be converted to turf. According to town documents, the hope is that the switch…