Update .gitignore from https://www.gitignore.io/api/visualstudio
Update .gitignore from https://www.gitignore.io/api/visualstudio

zur003/oxyplot,HermanEldering/oxyplot,NilesDavis/oxyplot,shoelzer/oxyplot,Kaplas80/oxyplot,Jofta/oxyplot,Isolocis/oxyplot,ze-pequeno/oxyplot,GeertvanHorrik/oxyplot,olegtarasov/oxyplot,olegtarasov/oxyplot,DotNetDoctor/oxyplot,shoelzer/oxyplot,objorke/oxyplot,GeertvanHorrik/oxyplot,DotNetDoctor/oxyplot,shoelzer/oxyplot,Kaplas80/oxyplot,GeertvanHorrik/oxyplot,Jonarw/oxyplot,HermanEldering/oxyplot,objorke/oxyplot,objorke/oxyplot,oxyplot/oxyplot