Added tls for http clients (#5766)

* Added global http client

* Added Do func for global http client

* Changed the code to use the global http client

* Fix http client in volume uploader

* Fixed pkg name

* Fixed http util funcs

* Fixed http client for bench_filer_upload

* Fixed http client for stress_filer_upload

* Fixed http client for filer_server_handlers_proxy

* Fixed http client for command_fs_merge_volumes

* Fixed http client for command_fs_merge_volumes and command_volume_fsck

* Fixed http client for s3api_server

* Added init global client for main funcs

* Rename global_client to client

* Changed:
- fixed NewHttpClient;
- added CheckIsHttpsClientEnabled func
- updated security.toml in scaffold

* Reduce the visibility of some functions in the util/http/client pkg

* Added the loadSecurityConfig function

* Use util.LoadSecurityConfiguration() in NewHttpClient func

weed/s3api/s3api_bucket_handlers.go

@@ -13,7 +13,6 @@ import (
 
 	"github.com/aws/aws-sdk-go/private/protocol/xml/xmlutil"
 	"github.com/seaweedfs/seaweedfs/weed/s3api/s3bucket"
-	"github.com/seaweedfs/seaweedfs/weed/util"
 
 	"github.com/seaweedfs/seaweedfs/weed/filer"
 	"github.com/seaweedfs/seaweedfs/weed/s3api/s3_constants"
@@ -26,6 +25,7 @@ import (
 
 	"github.com/seaweedfs/seaweedfs/weed/glog"
 	"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
+	util_http "github.com/seaweedfs/seaweedfs/weed/util/http"
 )
 
 func (s3a *S3ApiServer) ListBucketsHandler(w http.ResponseWriter, r *http.Request) {
@@ -507,7 +507,7 @@ func (s3a *S3ApiServer) PutBucketOwnershipControls(w http.ResponseWriter, r *htt
 	}
 
 	var v s3.OwnershipControls
-	defer util.CloseRequest(r)
+	defer util_http.CloseRequest(r)
 
 	err := xmlutil.UnmarshalXML(&v, xml.NewDecoder(r.Body), "")
 	if err != nil {