Underscore-separated Plugins Endpoint name support

[Ja1rman]

pynetbox version

v7.4.1

NetBox version

v4.0.8

Python version

3.11

Steps to Reproduce

#332

Expected Behavior

I have link in format api/plugins/some_name
But I cant use library because in v6.1.3 formatting has appeared

pynetbox/pynetbox/core/app.py

Line 114 in 1cb5297

return App(self.api, "plugins/{}".format(name.replace("_", "-")))

Observed Behavior

I think that it should support both formats

for easy fix may be this solution will interesting replace("__", "-")
or you need to add a key to change or not change the format

[bctiemann]

This is a duplicate of #653