PDI-2104: UAT Fixes for Various Bugs

[erikostien-pingidentity]

• Save access token to user-specified profile if exists
• Make set and unset output in one json object. Add spacing
• Make output-format=json always output the message and avoid nil dereference
• Make both parent key validation and key validation use EqualFold for case-insensitive matching
• Default viper keys on profile add creation
• Disable TestNotificationTemplateContentExport for Issue When using platform export, some configuration resources are not generated when there are many results #29
• Remove --profile-name flag from get/set/unset config commands
• Update Dependencies

[samir-gandhi]

I didn't go through the code, but I did test each of the fixes manually in the cli and the fixes look good!