Update Example to Swift 5

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

@@ -163,7 +163,7 @@
 					14DAEE8F1A51E1BE0070B77E = {
 						CreatedOnToolsVersion = 6.2;
 						DevelopmentTeam = 27AEDK3C9F;
-						LastSwiftMigration = 1000;
+						LastSwiftMigration = 1100;
 					};
 				};
 			};
@@ -377,7 +377,7 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = "com.kishikawakatsumi.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 			};
 			name = Debug;
 		};
@@ -390,7 +390,7 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = "com.kishikawakatsumi.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 			};
 			name = Release;
 		};