[PB-4838]: refactor/centralized http client

[jzunigax2]

Previously on each api call http.DefaultClient was being used. This PR introduces a centralized http client injected through config, which has some settings like timeouts setup

[lullius]

@jzunigax2
I recommend checking #5 and the client branch. It has a centralized client and is a complete rewrite with a lot of cleanup. We didn't merge it into master because of breaking changes.
I see you're working on a fork over at https://github.com/internxt/rclone-adapter. Since it's early and you might not have other projects depending on it yet, consider forking the client branch instead. It could prevent duplicated work.

[jzunigax2]

@jzunigax2 I recommend checking #5 and the client branch. It has a centralized client and is a complete rewrite with a lot of cleanup. We didn't merge it into master because of breaking changes. I see you're working on a fork over at https://github.com/internxt/rclone-adapter. Since it's early and you might not have other projects depending on it yet, consider forking the client branch instead. It could prevent duplicated work.

Thanks @lullius ! I'll be sure to check it out

[lullius]

@jzunigax2
I'm guessing you're making an rclone backend based on the name of your repository. If I remember correctly
StarHack/rclone#4 was written to make use of the client branch in this repo. I think it should pass all of rclone's tests in the version of rclone it was forked from. I'm not sure it will pass on the current version of rclone as some things have changed since then.