Support setting limits on PodSpec/Jobs

[webvictim]

We should be able to set CPU/memory limits on jobs which can override the defaults set by a cluster.

I feel that something like this should work, but it doesn't currently:

Kube.Run(kube.Job{
    Name: Sprintf("tele-release-%v-%s-%s", ID(), os, arch),
    Spec: _{
        Template: _{
            Spec: _{
                Volumes: []_{
                    {Name: "creds", Secret: _{SecretName: "creds"}},
                    {Name: "gitkey", Secret: _{SecretName: "gitkey"}},
                    {Name: "aws-creds", Secret: _{SecretName: "aws-creds"}},
                    {Name: "scripts", ConfigMap: _{Name: "scripts"}},
                    {Name: "cache", EmptyDir: _{}},
                    {Name: "tmp", EmptyDir: _{}},
                },  
                Containers: []_{
                    {   
                        Name: containerLabel,
                        Image: forceImage,
                        Command: Strings("force", "-d"),
                        Env: []_{
                            {Name: "FORCE_ID", Value: ID()},
                            {Name: "FORCE_SCRIPT", Value: script},
                            {Name: "FORCE_SETUP", Value: containerSetupScript},
                            {Name: "GOOGLE_CREDENTIALS", Value: "/var/secrets/google/force-creds.json"},
                            {Name: "GIT_PRIVATE_KEY_FILE", Value: "/var/secrets/git/github.key"},
                            {Name: "GIT_KNOWN_HOSTS_FILE", Value: "/var/secrets/git/known_hosts"},
                        },  
                        VolumeMounts: []_{
                            {Name: "tmp", MountPath: "/tmp"},
                            {Name: "cache", MountPath: "/root/.local"},
                            {Name: "creds", MountPath: "/var/secrets/google"},
                            {Name: "gitkey", MountPath: "/var/secrets/git"},
                            {Name: "scripts", MountPath: "/mnt/scripts"},
                            {Name: "aws-creds", MountPath: "/root/.aws"},
                        },  
                        Resources: _{
                            Limits: _{
                                CPU: "1",
                            },  
                        },  
                        SecurityContext: _{Privileged: true},
                    },  
                },  
            },  
        },  
    },  
})

Error:

Original Error: *force.CodeError Failed calling function Include with args []interface {}{"release-lib.force"} reflect.Value.SetMapIndex: value of type string is not assignable to type v1.ResourceName

It works fine without the Resources: block.

I tried various combinations of:

CPU: "1",
CPU: "1000m",
CPU: 1,
CPU: 1000m,
"CPU": "1",
"CPU": 1
etc

Not sure whether I've got a problem with my structs or there's a bug. I can't figure out what sort of value it's expecting by reading the protobufs.

[webvictim]

Implemented in #87