By Karl Zinke karl.zinke@examiner.net The Grain Valley girls soccer team got its season and the Platte County Invitational off to a strong start. Annabelle Totta and Meghan Knust each scored a first-half goal as the Eagles blanked the Raymore-Peculiar Panthers 3-0 in the first round Monday. Totta put Grain Valley ahead in the fourth minute…