Add missing project refs to XwtDemo
Add missing project refs to XwtDemo

as-zhuravlev/oxyplot_wpf_fork,Kaplas80/oxyplot,objorke/oxyplot,DotNetDoctor/oxyplot,Jonarw/oxyplot,shoelzer/oxyplot,bbqchickenrobot/oxyplot,lynxkor/oxyplot,freudenthal/oxyplot,GeertvanHorrik/oxyplot,GeertvanHorrik/oxyplot,svendu/oxyplot,H2ONaCl/oxyplot,Mitch-Connor/oxyplot,mattleibow/oxyplot,br111an/oxyplot,Sbosanquet/oxyplot,jeremyiverson/oxyplot,Rustemt/oxyplot,lynxkor/oxyplot,DotNetDoctor/oxyplot,TheAlmightyBob/oxyplot,lynxkor/oxyplot,Rustemt/oxyplot,ze-pequeno/oxyplot,Mitch-Connor/oxyplot,as-zhuravlev/oxyplot_wpf_fork,svendu/oxyplot,br111an/oxyplot,Isolocis/oxyplot,bbqchickenrobot/oxyplot,objorke/oxyplot,Rustemt/oxyplot,freudenthal/oxyplot,objorke/oxyplot,mattleibow/oxyplot,as-zhuravlev/oxyplot_wpf_fork,zur003/oxyplot,svendu/oxyplot,TheAlmightyBob/oxyplot,Jofta/oxyplot,Sbosanquet/oxyplot,NilesDavis/oxyplot,oxyplot/oxyplot,HermanEldering/oxyplot,bbqchickenrobot/oxyplot,HermanEldering/oxyplot,Mitch-Connor/oxyplot,TheAlmightyBob/oxyplot,olegtarasov/oxyplot,H2ONaCl/oxyplot,br111an/oxyplot,olegtarasov/oxyplot,freudenthal/oxyplot,GeertvanHorrik/oxyplot,shoelzer/oxyplot,Sbosanquet/oxyplot,jeremyiverson/oxyplot,Kaplas80/oxyplot,jeremyiverson/oxyplot,H2ONaCl/oxyplot,shoelzer/oxyplot