Define sensitive configuration and prevent templating

[brandtkeller]

Is your feature request related to a problem? Please describe.

Any operation that templates a file and writes a new file or logs the operation should prevent templating the sensitive templates while retaining the templates for future utilization.

Describe the solution you'd like

• Given a template is defined as sensitive
• When any write operation occurs
• Then sensitive values are not templated

Describe alternatives you've considered

N/A

Additional context

A template command may have a flag that explicitly allows for templating the sensitive configuration in order to test validity.

Expected Deliverable

Support for handling sensitive templates and configuration data

[brandtkeller]

decomposed from #517