Add ${port} logger variable

[markkrj]

Fix #1447

• Added function c.Port() which get port from c.fasthttp.RemoteAddr()
• Added port variable to middleware/logger

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[ReneWerner87]

Could you add a description in the readme and a unittest fpr for this?

[markkrj]

@ReneWerner87 can you check if it's ok now?

[ReneWerner87]

Please check

[markkrj]

@ReneWerner87 Simplified the code and ran tests locally with act, might be working now

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[ReneWerner87]

@markkrj can you please update https://github.com/gofiber/docs/blob/master/api/middleware/logger.md with the new variable

[markkrj]

@ReneWerner87 I sure can do that, but I think linking that to https://github.com/gofiber/fiber/blob/master/middleware/logger/README.md is a better solution as it is more up to date... There is more changes to logger that are not documented in gofiber/docs. IMHO you should keep docs only in one place to avoid such discrepancy.

[ReneWerner87]

yes gladly if git docs can work with it and does not produce a linkout when you click on it in the navigation all is good
https://docs.gofiber.io/api/middleware/logger

[ReneWerner87]

just tested it, in the gitbook would then show an external link, so we have to copy it
gofiber/docs@c980089
gofiber/docs@68a3082