Enhance detail of error messages

[jordanCain]

Currently when we encounter a none 2** response from an api request we say what has failed but don't propagate any response message to the user.

We should capture response messages and display them in the Snackbar

depends on https://github.com/zowe/data-sets/issues/14

[DivergentEuropeans]

@jordanCain If this is still an issue, we can use Notification framework to display a Zowe notification if something failed. Or a simple Angular Material Snackbar can be added too, like in Zowe Editor 🌱

[jordanCain]

@DivergentEuropeans The explorer apps already hook into the notification framework, this issue is more around improving the content of the notifications that are sent, in.some instances we just use a generic failed message without a reason whereas if available we should use a message returned from the api

[NakulManchanda]

@jordanCain is this still the case?

[jordanCain]

@NakulManchanda Yes, in many cases across the explorers we use generic hardcoded error messages when an action fails rather than relaying what the api/zosmf tells us