nOutput_EmailWarnings: add a current values data on the email

[nmaguiar]

Is your feature request related to a problem? Please describe.
When sending specific warning emails the description might not be enough to show the current status of an input if it's more complex than a single value (for example: a table)

Describe the solution you'd like
It could be possible to add a list of attributes so that when the email body is being prepared the current value of those attributes is rendered into the email (from simple values to complex map/table based values).

Describe alternatives you've considered
In alternative a new output could be created to send the current value and warning text based triggered by a specific warning.

Additional context
n/a