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 macOSUITests/Moonlight_macOSUITests.m

@@ -0,0 +1,40 @@
+//
+//  Moonlight_macOSUITests.m
+//  Moonlight macOSUITests
+//
+//  Created by Felix on 09.03.18.
+//  Copyright © 2018 Felix. All rights reserved.
+//
+
+#import <XCTest/XCTest.h>
+
+@interface Moonlight_macOSUITests : XCTestCase
+
+@end
+
+@implementation Moonlight_macOSUITests
+
+- (void)setUp {
+    [super setUp];
+    
+    // Put setup code here. This method is called before the invocation of each test method in the class.
+    
+    // In UI tests it is usually best to stop immediately when a failure occurs.
+    self.continueAfterFailure = NO;
+    // UI tests must launch the application that they test. Doing this in setup will make sure it happens for each test method.
+    [[[XCUIApplication alloc] init] launch];
+    
+    // In UI tests it’s important to set the initial state - such as interface orientation - required for your tests before they run. The setUp method is a good place to do this.
+}
+
+- (void)tearDown {
+    // Put teardown code here. This method is called after the invocation of each test method in the class.
+    [super tearDown];
+}
+
+- (void)testExample {
+    // Use recording to get started writing UI tests.
+    // Use XCTAssert and related functions to verify your tests produce the correct results.
+}
+
+@end