win32: toolbar api: support minimize button
win32: toolbar api: support minimize button

rhosilver/rhodes-1,rhosilver/rhodes-1,louisatome/rhodes,UIKit0/rhodes,rhosilver/rhodes-1,rhosilver/rhodes-1,louisatome/rhodes,rhosilver/rhodes-1,UIKit0/rhodes,louisatome/rhodes,louisatome/rhodes,UIKit0/rhodes,louisatome/rhodes,louisatome/rhodes,rhosilver/rhodes-1,louisatome/rhodes,louisatome/rhodes,UIKit0/rhodes,rhosilver/rhodes-1,rhosilver/rhodes-1,rhosilver/rhodes-1,UIKit0/rhodes,UIKit0/rhodes,UIKit0/rhodes,UIKit0/rhodes,UIKit0/rhodes,UIKit0/rhodes,louisatome/rhodes,rhosilver/rhodes-1