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 macOSTests/Moonlight_macOSTests.m

@@ -0,0 +1,39 @@
+//
+//  Moonlight_macOSTests.m
+//  Moonlight macOSTests
+//
+//  Created by Felix on 09.03.18.
+//  Copyright © 2018 Felix. All rights reserved.
+//
+
+#import <XCTest/XCTest.h>
+
+@interface Moonlight_macOSTests : XCTestCase
+
+@end
+
+@implementation Moonlight_macOSTests
+
+- (void)setUp {
+    [super setUp];
+    // Put setup code here. This method is called before the invocation of each test method in the class.
+}
+
+- (void)tearDown {
+    // Put teardown code here. This method is called after the invocation of each test method in the class.
+    [super tearDown];
+}
+
+- (void)testExample {
+    // This is an example of a functional test case.
+    // Use XCTAssert and related functions to verify your tests produce the correct results.
+}
+
+- (void)testPerformanceExample {
+    // This is an example of a performance test case.
+    [self measureBlock:^{
+        // Put the code you want to measure the time of here.
+    }];
+}
+
+@end