structの追加（VMDLightFrame, VMDSelfShadowFrame, VMDInfoIK, VMDShowIKFrame）
struct VMDInfoにshowIKCountとshowIKFramesを追加。
LightFrame, SelfShadowFrame, ShowIKFrameの読み込みを追加。
Merge for full VMD file-parsing support
Merge branch 'master' of https://github.com/shinokaro/MikuMikuPenguin into shinokaro-master
Changed VMD struct naming slightly# Please enter the commit message for your changes. Lines starting