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/mq/broker/broker_topic_partition_read_write.go

@@ -13,6 +13,7 @@ import (
 	"math"
 	"sync/atomic"
 	"time"
+	util_http "github.com/seaweedfs/seaweedfs/weed/util/http"
 )
 
 func (b *MessageQueueBroker) genLogFlushFunc(t topic.Topic, partition *mq_pb.Partition) log_buffer.LogFlushFuncType {
@@ -131,7 +132,7 @@ func (b *MessageQueueBroker) genLogOnDiskReadFunc(t topic.Topic, partition *mq_p
 			for _, urlString := range urlStrings {
 				// TODO optimization opportunity: reuse the buffer
 				var data []byte
-				if data, _, err = util.Get(urlString); err == nil {
+				if data, _, err = util_http.Get(urlString); err == nil {
 					processed = true
 					if processedTsNs, err = eachChunkFn(data, eachLogEntryFn, starTsNs, stopTsNs); err != nil {
 						return