Please add Egger's regression test

[Regular-Opinion]

This module has everything but just needs Egger's test to go with the funnel plot. That would be an immense help as visual inspection of the funnel plot alone is not helpful usually and you need Egger's test to go with it. It is widely used and hence an immediate necessity.

[github-actions[bot]]

If you dont get a reply from me in a couple days comment on this issue so Ill see it' first issue