feat: client::http::Options::verbose to see more debug output.

This means different things depending on the backend, and for
`curl` it means a lot of debug-output on stderr.

Author: Byron

git-transport/src/client/blocking_io/http/curl/remote.rs

@@ -140,6 +140,7 @@ pub fn new() -> (
                     proxy_auth_method,
                     user_agent,
                     proxy_authenticate,
+                    verbose,
                     backend: _,
                 },
         } in req_recv
@@ -152,6 +153,7 @@ pub fn new() -> (
             for header in extra_headers {
                 headers.append(&header)?;
             }
+            handle.verbose(verbose)?;
 
             let mut proxy_auth_action = None;
             if let Some(proxy) = proxy {

git-transport/src/client/blocking_io/http/mod.rs

@@ -123,6 +123,8 @@ pub struct Options {
     /// If `None`, this typically defaults to 2 minutes to 5 minutes.
     /// Refers to `gitoxide.http.connectTimeout`.
     pub connect_timeout: Option<std::time::Duration>,
+    /// If enabled, emit additional information about connections and possibly the data received or written.
+    pub verbose: bool,
     /// Backend specific options, if available.
     pub backend: Option<Arc<Mutex<dyn Any + Send + Sync + 'static>>>,
 }