This PR adds support for getting resources by name.
```
$ fleetctl get queries
no queries found
$ fleetctl apply -f ./query.yaml
[+] applied 1 queries
$ fleetctl get queries
+-----------------+--------------------------------+--------------------------------+
| NAME | DESCRIPTION | QUERY |
+-----------------+--------------------------------+--------------------------------+
| osquery_version | The version of the Launcher | select launcher.version, |
| | and Osquery process | osquery.version from |
| | | kolide_launcher_info launcher, |
| | | osquery_info osquery; |
+-----------------+--------------------------------+--------------------------------+
$ fleetctl get query osquery_version
apiVersion: v1
kind: query
spec:
description: The version of the Launcher and Osquery process
name: osquery_version
query: select launcher.version, osquery.version from kolide_launcher_info launcher,
osquery_info osquery;
```
This PR implements a program called `fleetctl` which scaffolds a high level CLI interface which can be used to manage a Fleet server. Configuration is articulated using an intent-based API that resembles the API that is used to configure Kubernetes clusters. The idea here is to use the Kubernetes file format as a pattern to reduce the need for operators to become too intimately familiar with dramatically different file formats. (#1578)
