Added Missing ToEto and ToSD functions to Windows lib
Added Missing ToEto and ToSD functions to Windows lib

- Rectangle was missing ToEto and ToSD extension method.
- Point was missing ToEto extension method.

bbqchickenrobot/Eto-1,PowerOfCode/Eto,l8s/Eto,PowerOfCode/Eto,bbqchickenrobot/Eto-1,l8s/Eto,PowerOfCode/Eto,l8s/Eto,bbqchickenrobot/Eto-1