Port for macOS (#311)

* merged moonlight-mac with moonlight-ios

* reverted to the original project.pbxproj

* cleaned up the code, fixed lots of unnecessary code duplications

* multicontroller support (not tested)

* new class that can be used for further modularization of the MainFrameViewController

Moonlight macOS/ViewController/ViewController.h

@@ -0,0 +1,35 @@
+//
+//  ViewController.h
+//  Moonlight macOS
+//
+//  Created by Felix Kratz on 09.03.18.
+//  Copyright © 2018 Felix Kratz. All rights reserved.
+//
+
+#import <Cocoa/Cocoa.h>
+#import <AppKit/AppKit.h>
+#import "PairManager.h"
+#import "StreamConfiguration.h"
+
+@interface ViewController : NSViewController <PairCallback, NSURLConnectionDelegate>
+
+- (IBAction)buttonLaunchPressed:(id)sender;
+- (IBAction)textFieldAction:(id)sender;
+- (IBAction)buttonConnectPressed:(id)sender;
+- (IBAction)buttonSettingsPressed:(id)sender;
+- (IBAction)popupButtonSelectionPressed:(id)sender;
+
+- (void)setError:(long)errorCode;
+- (long) error;
+
+@property (weak) IBOutlet NSLayoutConstraint *layoutConstraintSetupFrame;
+@property (weak) IBOutlet NSButton *buttonConnect;
+@property (weak) IBOutlet NSTextField *textFieldHost;
+@property (weak) IBOutlet NSButton *buttonSettings;
+@property (weak) IBOutlet NSButton *buttonLaunch;
+@property (weak) IBOutlet NSPopUpButton *popupButtonSelection;
+@property (weak) IBOutlet NSView *containerViewController;
+
+
+@end
+