Added method to clear RangeColorAxis ranges.
Added method to clear RangeColorAxis ranges.

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