[FEATURE] Delegate Patern

[m2gi-vedrennp]

Why do we need this improvement?

In my project i needed to specify a function to use to délégate.
I saw that some of the template allow you to do so.

How will this change help?

Allow to generate more specific code for project.

Screenshots

No screenshot

How could it be implemented/designed?

I already did so, more or less in a personal fork.
I will try to clean the code and push the feature.

🚧 Breaking changes

No

👀 Have you checked for similar open issues?

• I checked and didn't find a similar issue

🏢 Have you read the Contributing Guidelines?

• I have read the Contributing Guidelines

Are you willing to work on this issue?

Yes I am willing to submit a PR!
And other People can do it too

[github-actions]

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