(?) Disable "Treat Warnings as Errors" in two targets

— WordPressIntents and WordPressStatsWidgets.

This is a known issue documented in Xcode's release notes:
> Generated Swift code that the Intent definition compiler produces
> emits a warning when compiled:

Hopefully this issue will be addressed in future betas, and then we can
revert this commit.

WordPress/WordPress.xcodeproj/project.pbxproj

@@ -22746,6 +22746,7 @@
 				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
 				SWIFT_OBJC_BRIDGING_HEADER = "WordPressStatsWidgets/Supporting Files/WordPressStatsWidgets-Bridging-Header.h";
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+				SWIFT_TREAT_WARNINGS_AS_ERRORS = NO;
 				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				WPCOM_SCHEME = wpdebug;
@@ -22798,6 +22799,7 @@
 				PROVISIONING_PROFILE_SPECIFIER = "match AppStore org.wordpress.WordPressStatsWidgets";
 				SKIP_INSTALL = YES;
 				SWIFT_OBJC_BRIDGING_HEADER = "WordPressStatsWidgets/Supporting Files/WordPressStatsWidgets-Bridging-Header.h";
+				SWIFT_TREAT_WARNINGS_AS_ERRORS = NO;
 				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				WPCOM_SCHEME = wordpress;
@@ -22851,6 +22853,7 @@
 				PROVISIONING_PROFILE_SPECIFIER = "match InHouse org.wordpress.internal.WordPressStatsWidgets";
 				SKIP_INSTALL = YES;
 				SWIFT_OBJC_BRIDGING_HEADER = "WordPressStatsWidgets/Supporting Files/WordPressStatsWidgets-Bridging-Header.h";
+				SWIFT_TREAT_WARNINGS_AS_ERRORS = NO;
 				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				WPCOM_SCHEME = wpinternal;
@@ -22904,6 +22907,7 @@
 				PROVISIONING_PROFILE_SPECIFIER = "match InHouse org.wordpress.alpha.WordPressStatsWidgets";
 				SKIP_INSTALL = YES;
 				SWIFT_OBJC_BRIDGING_HEADER = "WordPressStatsWidgets/Supporting Files/WordPressStatsWidgets-Bridging-Header.h";
+				SWIFT_TREAT_WARNINGS_AS_ERRORS = NO;
 				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				WPCOM_SCHEME = wpalpha;
@@ -25417,6 +25421,7 @@
 				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
 				SWIFT_OBJC_BRIDGING_HEADER = "WordPressIntents/Supporting Files/WordPressIntents-Bridging-Header.h";
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+				SWIFT_TREAT_WARNINGS_AS_ERRORS = NO;
 				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				WPCOM_SCHEME = wpdebug;
@@ -25467,6 +25472,7 @@
 				PROVISIONING_PROFILE_SPECIFIER = "match AppStore org.wordpress.WordPressIntents";
 				SKIP_INSTALL = YES;
 				SWIFT_OBJC_BRIDGING_HEADER = "WordPressIntents/Supporting Files/WordPressIntents-Bridging-Header.h";
+				SWIFT_TREAT_WARNINGS_AS_ERRORS = NO;
 				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				WPCOM_SCHEME = wordpress;
@@ -25518,6 +25524,7 @@
 				PROVISIONING_PROFILE_SPECIFIER = "match InHouse org.wordpress.internal.WordPressIntents";
 				SKIP_INSTALL = YES;
 				SWIFT_OBJC_BRIDGING_HEADER = "WordPressIntents/Supporting Files/WordPressIntents-Bridging-Header.h";
+				SWIFT_TREAT_WARNINGS_AS_ERRORS = NO;
 				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				WPCOM_SCHEME = wpinternal;
@@ -25569,6 +25576,7 @@
 				PROVISIONING_PROFILE_SPECIFIER = "match InHouse org.wordpress.alpha.WordPressIntents";
 				SKIP_INSTALL = YES;
 				SWIFT_OBJC_BRIDGING_HEADER = "WordPressIntents/Supporting Files/WordPressIntents-Bridging-Header.h";
+				SWIFT_TREAT_WARNINGS_AS_ERRORS = NO;
 				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				WPCOM_SCHEME = wpalpha;