Filter unnecessary HTTP collection

[xuerbujia]

Is your feature request related to a problem? Please describe.

no

Describe the solution you'd like

When HTTP collection is used, you can add a blacklist to filter unnecessary hosts

Describe alternatives you've considered

No response

Additional context

我发现在收集到的数据中，有exporter它自己上报自己数据，我觉得收集这些数据没有意义
I found that among the collected data, some exporters reported their own data. I think it is meaningless to collect such data

[xuerbujia]

[123liuziming]

related to #222 , we have plan to provide a custom filter

[123liuziming]

Contributions are welcomed