Updated Sofa 0.6 to use tokio-async, latest serde and reqwest libraries and follow 2018 standard

[mibes]

Hi,

We're using your excellent library in one of our solutions. We did have to make some changes to integrate it into the tokio async framework. The library has been "upgraded" to use the latest serde and reqwest libraries.

We've also added some examples to illustrate the use of the library.

Kind regards, Marcel

[kallisti5]

@OtaK Any plans to continue development of sofa? This seems like a great PR, but is kind of being ignored.

@mibes Looking at https://github.com/66Origin/sofa/issues/1, it potentially appears the project was likely open-sourced and abandoned. Any interest in maintaining it?

@OtaK I want to thank the author for the work on this, and open sourcing it. When you have a baby however, you gotta pay child support.

Open Sourcing something without managing the project creates more confusion than anything. If it was a "open source and run", you might want to set the repository as read-only to clearly indicate that.