CatalogSource status should show the following information
- If a `ConfigMap` is missing the status should reflect that.
- Any error while setting up the registry pod
- Last observed state of the gRPC connection to the registry pod.

Currently none of the information is available in the status block of a CatalogSource. 

How to reproduce:
a)
 1. Create a `CatalogSource` object that points to an non existing ConfigMap object.

Actual Results:
- The status block of the CatalogSource will have no information regarding the missing ConfigMap object.

Expected Results:
- The status block of the CatalogSource displays information regarding the missing ConfigMap.

b)

2. Add a ConfigMap object that the above CatalogSource refers to, make sure the fill the `data` section with invalid metadata that causes the registry pod to go into CrashLoop state. For example, you can put a non existing csv name for `currentCSV` inside the channel of the package.

Actual Results:
- The status block of the CatalogSource will have no information regarding the crash looping registry pod.

Expected Results:
- The status block of the CatalogSource displays information about the current state of the gRPC connection.