[Feature Request]: Custom headers in Grizzly config or some other way to define a header in Grizzly

[jtubay03]

Feature Request

I would like to see some mechanism to add a custom header to a Grizzly request. My use case requires a custom header lets say called Custom-Header that takes a token to get through our hosts proxy. As of right now, I don't see a way to do that with grizzly making it unusable for us.