`kctrl`: Allow inspection of resources created by kapp easily

**Describe the problem/challenge you have**
Users should be able to view resources taht are created by a package install and App CRs

**Describe the solution you'd like**
The experience should look something like this:
```bash
$ kctrl app inspect -a simple-app
Target cluster 'https://127.0.0.1:62025' (nodes: minikube)

Fetching app `simple-app` in namespace `default`

Resources in app 'simple-app'

Namespace Name Kind Owner Conds. Rs Ri Age
(cluster) foostores.demo.com CustomResourceDefinition kapp 2/2 t ok - 3d
default bar FooStore kapp - ok - 3d

Rs: Reconcile state
Ri: Reconcile information

Succeeded
```
`kctrl package installed inspect -i simple-app` should yield a similar result for package installations.

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