Windows images will require other base images, and thus, we will need
to explicitly specify the OS type a base image is for in order to
avoid confusion or errors.
The previous version of CudaVectorAdd test image can still be used
in our testing. A later change will extend the existing gpu e2e tests
to run pods with two containers. One with CudaVectorAdd version1 and
the other with CudaVectorAdd version2 so that we can test both
Cuda versions.
