tests, windows, Refactor e2e tests
tests, windows, Refactor e2e tests

Rearrange e2e tests contexts in order to be able
to reuse code blocks.

Signed-off-by: Or Shoval <7299abc34af50659adafa6d252dc9c537bb5cf36@redhat.com>

kubevirt/kubevirt,kubevirt/kubevirt,kubevirt/kubevirt,kubevirt/kubevirt