fix bug:
update raw_data_ after notify changed.
canscope_chnl_container update all chnl
fix bug:
logic offset use double, or will overflow
fix bug:
create ChnlAnaData
fix bug:
return right chnl key
fix bug: set to right chnl
LayoutFPS when FPS text changed
rename XToVerctor to XToVector
fix bug: post task with refcount
fix bug: CallbackOnReady() check if ready. if ready call callback immediately