refactored all functions (#145)

* refactored stat_object

refactored select_object_content

refactor get_presigned_object_url

refactor get_presigned_policy_form_data

refactored upload-part-copy

* fixed object.unwrap

* update region

* made client Arc

* made client Arc

* update client

* update tests

* update segmented_bytes

* bench updated

* cleanup version handling

* cleanup of headers: multimap

* added inner in Client

* updated clients: added Into<String>in API

* Separated http_client and shared client items in Client

tests/test_bucket_lifecycle.rs

@@ -22,7 +22,7 @@ use minio_common::example::create_bucket_lifecycle_config_examples;
 use minio_common::test_context::TestContext;
 
 #[tokio::test(flavor = "multi_thread", worker_threads = 10)]
-async fn set_get_delete_bucket_lifecycle() {
+async fn bucket_lifecycle() {
     let ctx = TestContext::new_from_env();
     let (bucket_name, _cleanup) = ctx.create_bucket_helper().await;