Declare public methods of adapter and add adapter header to the bridge header

OpenVPN Tunnel Provider/Bridging-Header.h

@@ -2,3 +2,4 @@
 //  Use this file to import your target's public headers that you would like to expose to Swift.
 //
 
+#import "OpenVPNAdapter+Provider.h"

OpenVPN Tunnel Provider/OpenVPNAdapter+Provider.h

@@ -34,4 +34,12 @@ NS_SWIFT_NAME(handle(error:));
 
 @property (weak, nonatomic, null_unspecified) id<OpenVPNAdapterDelegate> delegate;
 
+- (BOOL)configureWithUsername:(nonnull NSString *)username
+                           password:(nonnull NSString *)password
+                              error:(out NSError * __nullable * __nullable)error
+NS_SWIFT_NAME(configure(username:password:));
+
+- (void)connect;
+- (void)disconnect;
+
 @end