Separate test cases for Binary and Source installation instructions

[sloretz]

Looking at osrf/ros2_test_cases#243

It says to test both binary and from source installation methods. I think those two are worth separating, or at least having two check boxes in the issue for. They're both instructions from a fresh windows install, so my plan is to do them in two different VMs.

• https://docs.ros.org/en/rolling/Installation/Windows-Install-Binary.html
• https://docs.ros.org/en/rolling/Installation/Windows-Development-Setup.html