StyleShare CEO Jayoung Yoon is only 25 years old, but has built a formidable fashion and style platform and has just secured a further $2.5M to expand her vision globally. This series B investment from LB Investment follows a seed round from Primer (20M KRW), and a seed round from Suprema & the founder of Daum ($08.M). StyleShare as a mobile fashion contents platform that allows users to share what they are…