Declare class contains client configuration

OpenVPN Adapter/OpenVPNConfiguration+Internal.h

@@ -0,0 +1,19 @@
+//
+//  OpenVPNConfiguration+Internal.h
+//  OpenVPN Adapter
+//
+//  Created by Sergey Abramchuk on 21.04.17.
+//
+//
+
+#import <client/ovpncli.hpp>
+
+#import "OpenVPNConfiguration.h"
+
+using namespace openvpn;
+
+@interface OpenVPNConfiguration (Internal)
+
+@property (readonly) ClientAPI::Config config;
+
+@end

OpenVPN Adapter/OpenVPNConfiguration.h

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+//
+//  OpenVPNConfiguration.h
+//  OpenVPN Adapter
+//
+//  Created by Sergey Abramchuk on 21.04.17.
+//
+//
+
+#import <Foundation/Foundation.h>
+
+@interface OpenVPNConfiguration : NSObject
+
+@end

OpenVPN Adapter/OpenVPNConfiguration.mm

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+//
+//  OpenVPNConfiguration.m
+//  OpenVPN Adapter
+//
+//  Created by Sergey Abramchuk on 21.04.17.
+//
+//
+
+#import "OpenVPNConfiguration.h"
+#import "OpenVPNConfiguration+Internal.h"
+
+@interface OpenVPNConfiguration () {
+    ClientAPI::Config _config;
+}
+
+@end
+
+@implementation OpenVPNConfiguration (Internal)
+
+- (ClientAPI::Config)config {
+    return _config;
+}
+
+@end
+
+@implementation OpenVPNConfiguration
+
+
+@end