Always run sanitizers with AllUnitTests_iOS (#1447)

* Always run sanitizers with AllUnitTests_iOS
* increase timeout value

Author: paulb777

Example/Auth/Tests/FIREmailLinkSignInResponseTests.m

@@ -87,7 +87,7 @@
     @brief The maximum difference between time two dates (in seconds), after which they will be
         considered different.
  */
-static const NSTimeInterval kMaxDifferenceBetweenDates = 0.0001;
+static const NSTimeInterval kMaxDifferenceBetweenDates = 0.001;
 
 /** @var kFakeIsNewUSerFlag
     @brief The fake fake isNewUser flag in the response.

Example/Firebase.xcodeproj/xcshareddata/xcschemes/AllUnitTests_iOS.xcscheme

@@ -110,7 +110,8 @@
       buildConfiguration = "Debug"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
-      language = ""
+      enableThreadSanitizer = "YES"
+      enableUBSanitizer = "YES"
       shouldUseLaunchSchemeArgsEnv = "YES">
       <Testables>
          <TestableReference
@@ -184,13 +185,17 @@
          </BuildableReference>
       </MacroExpansion>
       <AdditionalOptions>
+         <AdditionalOption
+            key = "NSZombieEnabled"
+            value = "YES"
+            isEnabled = "YES">
+         </AdditionalOption>
       </AdditionalOptions>
    </TestAction>
    <LaunchAction
       buildConfiguration = "Debug"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
-      language = ""
       launchStyle = "0"
       useCustomWorkingDirectory = "NO"
       ignoresPersistentStateOnLaunch = "NO"