Option for `copy` platform not to mirror back changes to the source

**Describe the problem you have/What new integration you would like**
[Copy integration](https://esphome.io/components/copy.html) is excellent, one option is needed, to prohibit forwarding actions such as turning on back to the source.
Something like `feed_back` optional, as `true`/`false`, default `true` to keep current behavior id not specified.
Applicable only to interactive components (not applicable to sensors).

**Please describe your use case for this integration and alternatives you've tried:**
This would be very useful in more complex cases when one wants to make state changes to the source but not immediately, but on a later stage, and wants to skip intermediate changes. This could be feasible with an `on_value` action set to the copy.

**Additional context**

Start with the linked Copy integration documentation and trace how interactive components forward actions back to their source. Define the behavior for an optional feed_back setting, preserving the current default and excluding sensors; no implementation files or tests are named in the request, so identify those before estimating the change.

Written by the indexing model from the issue text.