Add code signing entitlements for example project

Examples/Example-iOS/Example-iOS.xcodeproj/project.pbxproj

@@ -55,6 +55,7 @@
 /* End PBXCopyFilesBuildPhase section */
 
 /* Begin PBXFileReference section */
+		145652E11D898BB9006E8D0E /* Example-iOS.entitlements */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.entitlements; path = "Example-iOS.entitlements"; sourceTree = "<group>"; };
 		14DAEE901A51E1BE0070B77E /* Example-iOS.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = "Example-iOS.app"; sourceTree = BUILT_PRODUCTS_DIR; };
 		14DAEE941A51E1BE0070B77E /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		14DAEE951A51E1BE0070B77E /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
@@ -113,6 +114,7 @@
 			isa = PBXGroup;
 			children = (
 				14DAEE941A51E1BE0070B77E /* Info.plist */,
+				145652E11D898BB9006E8D0E /* Example-iOS.entitlements */,
 			);
 			name = "Supporting Files";
 			sourceTree = "<group>";
@@ -277,6 +279,7 @@
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_ENTITLEMENTS = "Example-iOS/Example-iOS.entitlements";
 				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
 				COPY_PHASE_STRIP = NO;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
@@ -324,6 +327,7 @@
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_ENTITLEMENTS = "Example-iOS/Example-iOS.entitlements";
 				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
 				COPY_PHASE_STRIP = YES;
 				ENABLE_NS_ASSERTIONS = NO;

Examples/Example-iOS/Example-iOS/Example-iOS.entitlements

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>keychain-access-groups</key>
+	<array>
+		<string>$(AppIdentifierPrefix)com.kishikawakatsumi.Example-iOS</string>
+	</array>
+</dict>
+</plist>