Support the creation of secrets and ConfigMaps in Cluster Insights

[chargio]

When in cluster mode, it is necessary to create Secrets and ConfigMaps, so your application can use them. We can update existing secrets, but we can't create new ones, completing the use case.

[olensmar]

Suggest we make this a modal which prompts for name, namespace and and a table of key/value pairs as content, with options to upload a file - both for a value and the entire resource. An option to base64 encode values should be available for secrets. Once completed Monokle should directly deploy the resource to the cluster.