Move UI code into a separate platform-specific folder

Later, we hope to have a UI/macOS folder for developing a macOS client
from this codebase.

Signed-off-by: Roopesh Chander <roop@roopc.net>

WireGuard/WireGuard.xcodeproj/project.pbxproj

@@ -7,21 +7,21 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
-		6FF4AC18211EC46F002C96EB /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6FF4AC17211EC46F002C96EB /* AppDelegate.swift */; };
+		6F7774E1217181B1006A79B3 /* MainViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6F7774DF217181B1006A79B3 /* MainViewController.swift */; };
+		6F7774E2217181B1006A79B3 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6F7774E0217181B1006A79B3 /* AppDelegate.swift */; };
 		6FF4AC1F211EC472002C96EB /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 6FF4AC1E211EC472002C96EB /* Assets.xcassets */; };
 		6FF4AC22211EC472002C96EB /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 6FF4AC20211EC472002C96EB /* LaunchScreen.storyboard */; };
-		6FF4AC2F211F1F57002C96EB /* MainViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6FF4AC2E211F1F57002C96EB /* MainViewController.swift */; };
 		6FF4AC472120B9E0002C96EB /* NetworkExtension.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 6FF4AC462120B9E0002C96EB /* NetworkExtension.framework */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXFileReference section */
+		6F7774DF217181B1006A79B3 /* MainViewController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = MainViewController.swift; sourceTree = "<group>"; };
+		6F7774E0217181B1006A79B3 /* AppDelegate.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
 		6FF4AC14211EC46F002C96EB /* WireGuard.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = WireGuard.app; sourceTree = BUILT_PRODUCTS_DIR; };
-		6FF4AC17211EC46F002C96EB /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
 		6FF4AC1E211EC472002C96EB /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
 		6FF4AC21211EC472002C96EB /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
 		6FF4AC23211EC472002C96EB /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		6FF4AC2B211EC776002C96EB /* Developer.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; name = Developer.xcconfig; path = Config/Developer.xcconfig; sourceTree = "<group>"; };
-		6FF4AC2E211F1F57002C96EB /* MainViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MainViewController.swift; sourceTree = "<group>"; };
 		6FF4AC462120B9E0002C96EB /* NetworkExtension.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = NetworkExtension.framework; path = System/Library/Frameworks/NetworkExtension.framework; sourceTree = SDKROOT; };
 		6FF4AC482120B9E0002C96EB /* WireGuard.entitlements */ = {isa = PBXFileReference; lastKnownFileType = text.plist.entitlements; path = WireGuard.entitlements; sourceTree = "<group>"; };
 /* End PBXFileReference section */
@@ -38,6 +38,23 @@
 /* End PBXFrameworksBuildPhase section */
 
 /* Begin PBXGroup section */
+		6F7774DD217181B1006A79B3 /* UI */ = {
+			isa = PBXGroup;
+			children = (
+				6F7774DE217181B1006A79B3 /* iOS */,
+			);
+			path = UI;
+			sourceTree = "<group>";
+		};
+		6F7774DE217181B1006A79B3 /* iOS */ = {
+			isa = PBXGroup;
+			children = (
+				6F7774DF217181B1006A79B3 /* MainViewController.swift */,
+				6F7774E0217181B1006A79B3 /* AppDelegate.swift */,
+			);
+			path = iOS;
+			sourceTree = "<group>";
+		};
 		6FF4AC0B211EC46F002C96EB = {
 			isa = PBXGroup;
 			children = (
@@ -58,9 +75,8 @@
 		6FF4AC16211EC46F002C96EB /* WireGuard */ = {
 			isa = PBXGroup;
 			children = (
+				6F7774DD217181B1006A79B3 /* UI */,
 				6FF4AC482120B9E0002C96EB /* WireGuard.entitlements */,
-				6FF4AC17211EC46F002C96EB /* AppDelegate.swift */,
-				6FF4AC2E211F1F57002C96EB /* MainViewController.swift */,
 				6FF4AC1E211EC472002C96EB /* Assets.xcassets */,
 				6FF4AC20211EC472002C96EB /* LaunchScreen.storyboard */,
 				6FF4AC23211EC472002C96EB /* Info.plist */,
@@ -152,8 +168,8 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				6FF4AC18211EC46F002C96EB /* AppDelegate.swift in Sources */,
+				6F7774E2217181B1006A79B3 /* AppDelegate.swift in Sources */,
-				6FF4AC2F211F1F57002C96EB /* MainViewController.swift in Sources */,
+				6F7774E1217181B1006A79B3 /* MainViewController.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};