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

[100mik]

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:

$ 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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[cppforlife]

Fetching app simple-app in namespace default

this seems unnecessary since we also have Resources in app 'simple-app'.