refactor: Restructure project layout and clean up dependencies (#30)

This commit introduces a significant reorganization of the project structure to improve maintainability and clarity.

Key changes include:
- Adjusted the directory layout for a more logical module organization.
- Removed unused crate dependencies, reducing the overall project size and potentially speeding up build times.
- Updated import paths and configuration files to reflect the structural changes.

crates/ecstore/src/client/mod.rs

@@ -0,0 +1,33 @@
+// Copyright 2024 RustFS Team
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+pub mod admin_handler_utils;
+pub mod api_bucket_policy;
+pub mod api_error_response;
+pub mod api_get_object;
+pub mod api_get_options;
+pub mod api_list;
+pub mod api_put_object;
+pub mod api_put_object_common;
+pub mod api_put_object_multipart;
+pub mod api_put_object_streaming;
+pub mod api_remove;
+pub mod api_s3_datatypes;
+pub mod bucket_cache;
+pub mod constants;
+pub mod credentials;
+pub mod object_api_utils;
+pub mod object_handlers_common;
+pub mod transition_api;
+pub mod utils;