If field name contains a dash invalid Typescript is generated.

[liamawhite]

Expected behavior

The cli to recognize that current-context should be renamed to currentContext

Current behavior

Invalid field names e.g. current-context:

...
        export interface SpinnakerAccountSpecKubernetesKubeconfig {
...
            current-context: string;
...

Steps to reproduce

Generate the following crd in typescript https://github.com/armory/spinnaker-operator/blob/master/deploy/crds/spinnaker.io_spinnakeraccounts_crd.yaml#L169

[rquitales]

Closing in favor of #101 as there is more discussion in that issue.