822: project dep analysis1 , experiment!

remove  LayoutFarm.Drawing  reference
from OpenTK.CoreGraphics
824:remove LayoutFarm.Drawing from OpenTk.Platform
827:remove LayoutFarm.Drawing from OpenTk.PlatformMini
828: rearrange solution folders
829: remove System.Drawing ref
830: remove some references
Merge branch 'dependency_revisit' into v_canvas
Merge branch 'v_canvas' into v_mini01
833: LayoutFarm.Drawing.Platform
Merge branch 'v_canvas' into v_mini01
833.1: thank you note
Merge branch 'v_canvas' into v_mini01
Merge branch 'v_mini01'

Conflicts:
	README.md