Moved cpu_shares and cpuset to unsupported keys

Resolves #272 and #267

As there is no direct mapping of `cpushares` and `cpuset` to kubernetes,
it should not be read and should be moved to unsupported keys.

pkg/transformer/openshift/openshift_test.go

@@ -45,8 +45,6 @@ func newServiceConfig() kobject.ServiceConfig {
 		Network:       []string{"network1", "network2"}, // not supported
 		Labels:        nil,
 		Annotations:   map[string]string{"abc": "def"},
-		CPUSet:        "cpu_set",            // not supported
-		CPUShares:     1,                    // not supported
 		CPUQuota:      1,                    // not supported
 		CapAdd:        []string{"cap_add"},  // not supported
 		CapDrop:       []string{"cap_drop"}, // not supported