Add windows golden file for `context ls`

Signed-off-by: Ulysses Souza <[email protected]>

tests/e2e/testdata/ls-out-json-windows.golden

@@ -0,0 +1 @@
+{"Current":true,"Description":"Current DOCKER_HOST based configuration","DockerEndpoint":"npipe:////./pipe/docker_engine","KubernetesEndpoint":"","Type":"moby","Name":"default","StackOrchestrator":"swarm"}