Add file copyright

src/DotNetCore.CAP.MongoDB/ICapTransaction.MongoDB.cs

-using System.Diagnostics;
+// Copyright (c) .NET Core Community. All rights reserved.
+// Licensed under the MIT License. See License.txt in the project root for license information.
+
+using System.Diagnostics;
 using MongoDB.Driver;
 
 // ReSharper disable once CheckNamespace

src/DotNetCore.CAP.MongoDB/IClientSessionHandle.CAP.cs

-using System.Threading;
+// Copyright (c) .NET Core Community. All rights reserved.
+// Licensed under the MIT License. See License.txt in the project root for license information.
+
+using System.Threading;
 using System.Threading.Tasks;
 using DotNetCore.CAP;
 using MongoDB.Bson;
@@ -9,13 +12,13 @@ namespace MongoDB.Driver
 {
     internal class CapMongoDbClientSessionHandle : IClientSessionHandle
     {
-        private readonly ICapTransaction _transaction;
         private readonly IClientSessionHandle _sessionHandle;
+        private readonly ICapTransaction _transaction;
 
         public CapMongoDbClientSessionHandle(ICapTransaction transaction)
         {
             _transaction = transaction;
-            _sessionHandle = (IClientSessionHandle)_transaction.DbTransaction;
+            _sessionHandle = (IClientSessionHandle) _transaction.DbTransaction;
         }
 
         public void Dispose()
@@ -68,6 +71,7 @@ namespace MongoDB.Driver
         public ClientSessionOptions Options => _sessionHandle.Options;
         public IServerSession ServerSession => _sessionHandle.ServerSession;
         public ICoreSessionHandle WrappedCoreSession => _sessionHandle.WrappedCoreSession;
+
         public IClientSessionHandle Fork()
         {
             return _sessionHandle.Fork();

src/DotNetCore.CAP.MySql/ICapTransaction.MySql.cs

-using System.Data;
+// Copyright (c) .NET Core Community. All rights reserved.
+// Licensed under the MIT License. See License.txt in the project root for license information.
+
+using System.Data;
 using System.Diagnostics;
-using Microsoft.EntityFrameworkCore.Storage;
 using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage;
 
 // ReSharper disable once CheckNamespace
 namespace DotNetCore.CAP

src/DotNetCore.CAP.MySql/IDbContextTransaction.CAP.cs

-using System;
+// Copyright (c) .NET Core Community. All rights reserved.
+// Licensed under the MIT License. See License.txt in the project root for license information.
+
+using System;
 using DotNetCore.CAP;
 
 // ReSharper disable once CheckNamespace
@@ -11,7 +14,7 @@ namespace Microsoft.EntityFrameworkCore.Storage
         public CapEFDbTransaction(ICapTransaction transaction)
         {
             _transaction = transaction;
-            var dbContextTransaction = (IDbContextTransaction)_transaction.DbTransaction;
+            var dbContextTransaction = (IDbContextTransaction) _transaction.DbTransaction;
             TransactionId = dbContextTransaction.TransactionId;
         }
 

src/DotNetCore.CAP.PostgreSql/ICapTransaction.PostgreSql.cs

-using System.Data;
+// Copyright (c) .NET Core Community. All rights reserved.
+// Licensed under the MIT License. See License.txt in the project root for license information.
+
+using System.Data;
 using System.Diagnostics;
 using Microsoft.EntityFrameworkCore.Infrastructure;
 using Microsoft.EntityFrameworkCore.Storage;
@@ -8,7 +11,9 @@ namespace DotNetCore.CAP
 {
     public class PostgreSqlCapTransaction : CapTransactionBase
     {
-        public PostgreSqlCapTransaction(IDispatcher dispatcher) : base(dispatcher) { }
+        public PostgreSqlCapTransaction(IDispatcher dispatcher) : base(dispatcher)
+        {
+        }
 
         public override void Commit()
         {
@@ -67,5 +72,4 @@ namespace DotNetCore.CAP
             return new CapEFDbTransaction(capTrans);
         }
     }
-
 }
\ No newline at end of file

src/DotNetCore.CAP.PostgreSql/IDbContextTransaction.CAP.cs

-using System;
+// Copyright (c) .NET Core Community. All rights reserved.
+// Licensed under the MIT License. See License.txt in the project root for license information.
+
+using System;
 using DotNetCore.CAP;
 
 // ReSharper disable once CheckNamespace
@@ -11,7 +14,7 @@ namespace Microsoft.EntityFrameworkCore.Storage
         public CapEFDbTransaction(ICapTransaction transaction)
         {
             _transaction = transaction;
-            var dbContextTransaction = (IDbContextTransaction)_transaction.DbTransaction;
+            var dbContextTransaction = (IDbContextTransaction) _transaction.DbTransaction;
             TransactionId = dbContextTransaction.TransactionId;
         }
 

src/DotNetCore.CAP.SqlServer/ICapTransaction.SqlServer.cs

-using System.Data;
+// Copyright (c) .NET Core Community. All rights reserved.
+// Licensed under the MIT License. See License.txt in the project root for license information.
+
+using System.Data;
 using System.Diagnostics;
 using Microsoft.EntityFrameworkCore.Infrastructure;
 using Microsoft.EntityFrameworkCore.Storage;
@@ -8,7 +11,9 @@ namespace DotNetCore.CAP
 {
     public class SqlServerCapTransaction : CapTransactionBase
     {
-        public SqlServerCapTransaction(IDispatcher dispatcher) : base(dispatcher) { }
+        public SqlServerCapTransaction(IDispatcher dispatcher) : base(dispatcher)
+        {
+        }
 
         public override void Commit()
         {
@@ -67,5 +72,4 @@ namespace DotNetCore.CAP
             return new CapEFDbTransaction(capTrans);
         }
     }
-
 }
\ No newline at end of file

src/DotNetCore.CAP.SqlServer/IDbContextTransaction.CAP.cs

-using System;
+// Copyright (c) .NET Core Community. All rights reserved.
+// Licensed under the MIT License. See License.txt in the project root for license information.
+
+using System;
 using DotNetCore.CAP;
 
 // ReSharper disable once CheckNamespace
@@ -11,7 +14,7 @@ namespace Microsoft.EntityFrameworkCore.Storage
         public CapEFDbTransaction(ICapTransaction transaction)
         {
             _transaction = transaction;
-            var dbContextTransaction = (IDbContextTransaction)_transaction.DbTransaction;
+            var dbContextTransaction = (IDbContextTransaction) _transaction.DbTransaction;
             TransactionId = dbContextTransaction.TransactionId;
         }