ChartMarker should not subclass ChartComponentBase
ChartMarker should not subclass ChartComponentBase

It just gains nothing from it,
and it currently has nothing in common with Axis, Legend and LimitLines

liuxuan30/ios-charts,jjatie/Charts,SereivoanYong/Charts,danielgindi/Charts,dtrauger/Charts,ConcepterDev/ios-charts,ConcepterDev/ios-charts,jesseXu/Charts,icecrystal23/ios-charts,liuxuan30/ios-charts,hanquochan/Charts,hanquochan/Charts,LiveHappier/Charts,shujucn/ios-charts,aelam/Charts,gjpc/ios-charts,convergeeducacao/Charts,jum/Charts,ekohe/ios-charts,MAARK/Charts,danielgindi/ios-charts,gjpc/ios-charts,dtrauger/Charts,summerlove57/ios-charts,SBGMobile/Charts,liuxuan30/Charts,jjatie/Charts,jum/Charts,SereivoanYong/Charts,boluomeng/Charts,summerlove57/ios-charts,gjpc/ios-charts,shujucn/ios-charts,FreddyZeng/Charts,SBGMobile/Charts,jesseXu/Charts,dtrauger/Charts,danielallsopp/Charts,liuxuan30/Charts,dtrauger/Charts,SBGMobile/Charts,summerlove57/ios-charts,jjatie/Charts,shujucn/ios-charts,FreddyZeng/Charts,jjatie/Charts,liuxuan30/ios-charts,convergeeducacao/Charts,SereivoanYong/Charts,hanquochan/Charts,FreddyZeng/Charts,hanquochan/Charts,icecrystal23/ios-charts,jum/Charts,ConcepterDev/ios-charts,duanhjlt/ios-charts,liuxuan30/Charts,LiveHappier/Charts,danielgindi/ios-charts,danielgindi/Charts,duanhjlt/ios-charts,icecrystal23/ios-charts,danielgindi/Charts,boluomeng/Charts,jesseXu/Charts,danielgindi/ios-charts,boluomeng/Charts,MAARK/Charts,jum/Charts,franqueli/ios-charts,liuxuan30/ios-charts,FreddyZeng/Charts,boluomeng/Charts,aelam/Charts,franqueli/ios-charts,MAARK/Charts,LiveHappier/Charts,MAARK/Charts,danielallsopp/Charts,liuxuan30/Charts,icecrystal23/ios-charts,duanhjlt/ios-charts,ekohe/ios-charts,franqueli/ios-charts,danielgindi/Charts,ekohe/ios-charts,aelam/Charts,danielgindi/ios-charts