Helper macro for developing fiddler modules
Fiddler [fiddler::config::Callback] requires a return signature of std::pin::Pin<Box<dyn core::future::Future<Output = Result<ExecutionType, Error>> + Send>>
This helper macro will accept a function signature of Fn(conf: Value) -> Result<ExecutionType, Error>and convert it
to the async Bos::pin future that is needed to store as a type