added copyright message in files (#2101)

src/metric/dcg_calculator.cpp

+/*!
+ * Copyright (c) 2016 Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License. See LICENSE file in the project root for license information.
+ */
 #include <LightGBM/metric.h>
 #include <LightGBM/utils/log.h>
 

src/metric/map_metric.hpp

+/*!
+ * Copyright (c) 2017 Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License. See LICENSE file in the project root for license information.
+ */
 #ifndef LIGHTGBM_METRIC_MAP_METRIC_HPP_
 #define LIGHTGBM_METRIC_MAP_METRIC_HPP_
 

src/metric/metric.cpp

+/*!
+ * Copyright (c) 2016 Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License. See LICENSE file in the project root for license information.
+ */
 #include <LightGBM/metric.h>
 
 #include "binary_metric.hpp"

src/metric/multiclass_metric.hpp

+/*!
+ * Copyright (c) 2016 Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License. See LICENSE file in the project root for license information.
+ */
 #ifndef LIGHTGBM_METRIC_MULTICLASS_METRIC_HPP_
 #define LIGHTGBM_METRIC_MULTICLASS_METRIC_HPP_
 

src/metric/rank_metric.hpp

+/*!
+ * Copyright (c) 2016 Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License. See LICENSE file in the project root for license information.
+ */
 #ifndef LIGHTGBM_METRIC_RANK_METRIC_HPP_
 #define LIGHTGBM_METRIC_RANK_METRIC_HPP_
 

src/metric/regression_metric.hpp

+/*!
+ * Copyright (c) 2016 Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License. See LICENSE file in the project root for license information.
+ */
 #ifndef LIGHTGBM_METRIC_REGRESSION_METRIC_HPP_
 #define LIGHTGBM_METRIC_REGRESSION_METRIC_HPP_
 

src/metric/xentropy_metric.hpp

+/*!
+ * Copyright (c) 2017 Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License. See LICENSE file in the project root for license information.
+ */
 #ifndef LIGHTGBM_METRIC_XENTROPY_METRIC_HPP_
 #define LIGHTGBM_METRIC_XENTROPY_METRIC_HPP_
 

src/network/linker_topo.cpp

+/*!
+ * Copyright (c) 2016 Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License. See LICENSE file in the project root for license information.
+ */
 #include <LightGBM/network.h>
 #include <LightGBM/utils/common.h>
 #include <LightGBM/utils/log.h>

src/network/linkers.h

+/*!
+ * Copyright (c) 2016 Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License. See LICENSE file in the project root for license information.
+ */
 #ifndef LIGHTGBM_NETWORK_LINKERS_H_
 #define LIGHTGBM_NETWORK_LINKERS_H_
 

src/network/linkers_mpi.cpp

+/*!
+ * Copyright (c) 2016 Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License. See LICENSE file in the project root for license information.
+ */
 #ifdef USE_MPI
 
 #include "linkers.h"

src/network/linkers_socket.cpp

+/*!
+ * Copyright (c) 2016 Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License. See LICENSE file in the project root for license information.
+ */
 #ifdef USE_SOCKET
 
 #include <LightGBM/config.h>

src/network/network.cpp

+/*!
+ * Copyright (c) 2016 Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License. See LICENSE file in the project root for license information.
+ */
 #include <LightGBM/network.h>
 
 #include <LightGBM/utils/common.h>

src/network/socket_wrapper.hpp

+/*!
+ * Copyright (c) 2016 Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License. See LICENSE file in the project root for license information.
+ */
 #ifndef LIGHTGBM_NETWORK_SOCKET_WRAPPER_HPP_
 #define LIGHTGBM_NETWORK_SOCKET_WRAPPER_HPP_
 #ifdef USE_SOCKET

src/objective/binary_objective.hpp

+/*!
+ * Copyright (c) 2016 Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License. See LICENSE file in the project root for license information.
+ */
 #ifndef LIGHTGBM_OBJECTIVE_BINARY_OBJECTIVE_HPP_
 #define LIGHTGBM_OBJECTIVE_BINARY_OBJECTIVE_HPP_
 

src/objective/multiclass_objective.hpp

+/*!
+ * Copyright (c) 2016 Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License. See LICENSE file in the project root for license information.
+ */
 #ifndef LIGHTGBM_OBJECTIVE_MULTICLASS_OBJECTIVE_HPP_
 #define LIGHTGBM_OBJECTIVE_MULTICLASS_OBJECTIVE_HPP_
 

src/objective/objective_function.cpp

+/*!
+ * Copyright (c) 2016 Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License. See LICENSE file in the project root for license information.
+ */
 #include <LightGBM/objective_function.h>
 
 #include "binary_objective.hpp"

src/objective/rank_objective.hpp

+/*!
+ * Copyright (c) 2016 Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License. See LICENSE file in the project root for license information.
+ */
 #ifndef LIGHTGBM_OBJECTIVE_RANK_OBJECTIVE_HPP_
 #define LIGHTGBM_OBJECTIVE_RANK_OBJECTIVE_HPP_
 

src/objective/regression_objective.hpp

+/*!
+ * Copyright (c) 2016 Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License. See LICENSE file in the project root for license information.
+ */
 #ifndef LIGHTGBM_OBJECTIVE_REGRESSION_OBJECTIVE_HPP_
 #define LIGHTGBM_OBJECTIVE_REGRESSION_OBJECTIVE_HPP_
 

src/objective/xentropy_objective.hpp

+/*!
+ * Copyright (c) 2017 Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License. See LICENSE file in the project root for license information.
+ */
 #ifndef LIGHTGBM_OBJECTIVE_XENTROPY_OBJECTIVE_HPP_
 #define LIGHTGBM_OBJECTIVE_XENTROPY_OBJECTIVE_HPP_
 

src/treelearner/data_parallel_tree_learner.cpp

+/*!
+ * Copyright (c) 2016 Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License. See LICENSE file in the project root for license information.
+ */
 #include <cstring>
 #include <tuple>
 #include <vector>