Add PngExporter test with higher resolution [discussion:541960]
Add PngExporter test with higher resolution [discussion:541960]

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