An option to enable logging http requests and responses

[maximmasiutin]

I am trying to install PetScan on my instance, but it always gives an error "No result for source categories". I don't see what happens behind the scene. Please consider adding an option to enable logging http requests and responses, so that we could see the source of errors.

[1-Byte]

In #153 I propose to start using tracing to ease debugging. It could be extended to log results of HTTP requests as well.

[maximmasiutin]

I used the latest version of petscan_rs sources from the repository, and now I'm getting proper error messages, such as:

2024-01-24T08:51:56.772295Z ERROR run:get_wiki_db_connection{wiki="enwiki"}: petscan_rs::app_state: error=Io(Io(Custom { kind: Uncategorized, error: "failed to lookup address information: Name or service not known" }))
2024-01-24T08:51:56.772437Z  INFO run: petscan_rs::platform: error=Io(Io(Custom { kind: Uncategorized, error: "failed to lookup address information: Name or service not known" }))
Platform::get_response: No result