Adding template text for sample size calculation reporting

[Arnaud Künzi]

Is your feature request related to a problem? Please describe.
Sample size calculation is often not transparently reported.

Describe the solution you'd like
This feature will help alleviate this issue by providing a paragraph to copy-paste/paraphrase into the publication/SAP/protocol. The paragraph could be displayed on each measures page below the replication code

Describe alternatives you've considered
None, I am all-in.

Please assign me the issue.