fix #616, and mozilla/geckodriver#515.

the issue just like angular/protractor#2784.

In cross site contexts (such as WebDriver frameworks like Selenium),
access eventHandler will throw permission denied error.

and in angular/protractor#2784, @juliemr fixed addEventListener,
in #616, firefox will also call removeEventListener , the code can be found here,
https://reviewboard.mozilla.org/r/98064/diff/12#index_header

so we need to do the same with addEventListener in removeEventListener to avoid
such issue.

• And I modify a little about addEventListener/removeEventListener

https://github.com/JiaLiPassion/zone.js/blob/3fae05d347fde7e46cc8834158da74e544506877/lib/common/utils.ts#L320

in earlier fix, if data.handler.toString is permission denied, we do nothing, but in FF52+, toString() is not accessible, but we can still call native addEventListener/removeEventListener with the data.handler, so we can try to do that and try/catch to avoid error.

• I also add test cases which include the test cases from https://github.com/juliemr/zone-firefox-driver/blob/master/test.js provided by @juliemr and from https://github.com/mgiambalvo/firefox-zonejs-issue-demo which provided by @mgiambalvo. Now it can be run locally after install the
  Firefox 52+, webdriver-manager 12.0.4+, selenium-webdriver 3.3.0+, and I will try to add it into travis/saucelabs after saucelabs support those newest browser/webdriver versions.