TFPHttpServer doesn't expose `Address` property
## Summary `TFPHttpServer` exposes properties inherited from `TFPCustomHttpServer`. This includes `Port`, but `Address` is missing. <br/>see https://gitlab.com/freepascal.org/fpc/source/-/blob/main/packages/fcl-web/src/base/fphttpserver.pp#L457 To me it seems this was overlooked, unless it's intentional.
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