Add ability to exclude columns in the CLI config (feature exists in VS Plugin, adding for parity)

[jwyza-pi]

• Closes [Feature] Add ability to exclude columns in tables in the CLI config  #2106 and adds the functionality for it.

• Reverts part of Issue #2100 - Adds new option to not refresh the object lists in the efcpt-config.json during subsequent scaffolds #2104 in order to support the ability to have excluded columns in the CLI. The reverted portion is the skipping of fetching the schema definition when the refresh-object-list is false

[jwyza-pi]

A couple of questions on this:

1. Can/Does/Should this functionality apply to Views/Sprocs/Functions? I have it coded that way right now, but wasn't sure if it should work with those.
2. Right now I'm just throwing an exception with the list of errors, but I don't think we want to do it quite this way. Thoughts?
3. No tests yet, want to see feedback on 1 & 2 before I add them.

[ErikEJ]

Views and tables only

We should ignore the bad column and show a warning in the final warnings summary

[jwyza-pi]

@ErikEJ - I believe I have this ready for review now.

[ErikEJ]

Thanks! Great addition