Azure blob storage support (#30995)

This PR implemented object storages(LFS/Packages/Attachments and etc.)
for Azure Blob Storage. It depends on azure official golang SDK and can
support both the azure blob storage cloud service and azurite mock
server.

Replace #25458
Fix #22527 

- [x] CI Tests
- [x] integration test, MSSQL integration tests will now based on
azureblob
  - [x] unit test 
- [x] CLI Migrate Storage
- [x] Documentation for configuration added

------

TODO (other PRs):
- [ ] Improve performance of `blob download`.

---------

Co-authored-by: yp05327 <576951401@qq.com>

routers/web/repo/actions/view.go

@@ -625,7 +625,7 @@ func ArtifactsDownloadView(ctx *context_module.Context) {
 	// The v4 backend enshures ContentEncoding is set to "application/zip", which is not the case for the old backend
 	if len(artifacts) == 1 && artifacts[0].ArtifactName+".zip" == artifacts[0].ArtifactPath && artifacts[0].ContentEncoding == "application/zip" {
 		art := artifacts[0]
-		if setting.Actions.ArtifactStorage.MinioConfig.ServeDirect {
+		if setting.Actions.ArtifactStorage.ServeDirect() {
 			u, err := storage.ActionsArtifacts.URL(art.StoragePath, art.ArtifactPath)
 			if u != nil && err == nil {
 				ctx.Redirect(u.String())

routers/web/repo/attachment.go

@@ -127,7 +127,7 @@ func ServeAttachment(ctx *context.Context, uuid string) {
 		return
 	}
 
-	if setting.Attachment.Storage.MinioConfig.ServeDirect {
+	if setting.Attachment.Storage.ServeDirect() {
 		// If we have a signed url (S3, object storage), redirect to this directly.
 		u, err := storage.Attachments.URL(attach.RelativePath(), attach.Name)
 

routers/web/repo/download.go

@@ -53,8 +53,8 @@ func ServeBlobOrLFS(ctx *context.Context, blob *git.Blob, lastModified *time.Tim
 			return nil
 		}
 
-		if setting.LFS.Storage.MinioConfig.ServeDirect {
-			// If we have a signed url (S3, object storage), redirect to this directly.
+		if setting.LFS.Storage.ServeDirect() {
+			// If we have a signed url (S3, object storage, blob storage), redirect to this directly.
 			u, err := storage.LFS.URL(pointer.RelativePath(), blob.Name())
 			if u != nil && err == nil {
 				ctx.Redirect(u.String())

routers/web/repo/repo.go

@@ -491,7 +491,7 @@ func download(ctx *context.Context, archiveName string, archiver *repo_model.Rep
 		archiver.CommitID, archiver.CommitID))
 
 	rPath := archiver.RelativePath()
-	if setting.RepoArchive.Storage.MinioConfig.ServeDirect {
+	if setting.RepoArchive.Storage.ServeDirect() {
 		// If we have a signed url (S3, object storage), redirect to this directly.
 		u, err := storage.RepoArchives.URL(rPath, downloadName)
 		if u != nil && err == nil {