I understand this is a recent update to MacOS but just wanted get this on the roadmap if it hasn't been tackled already. Thanks :)

## Environments
__OS:__  OSX
__Selenium Version:__  Selenium server standalone <= 3.14.0
__Browser:__  Any
__Browser Version:__ Any

## Expected Behavior
Selenium Grid hub routes webdriver traffic to specified `platform[Name]: macos 10.14` or `mojave`

## Actual Behavior
No current support for node platform target MacOS 10.14 Mojave.
Desired capabilities `platform[Name]` set to `macos 10.14` or `mojave` fails to find corresponding selenium node.
__Workaround:__
Disable all other MacOS platform nodes and target `platform[Name]: "MAC"`

## Steps to reproduce -
Create a selenium grid with OSX 10.12/13 and 10.14.
Run tests with desired capabilities `platform[Name]: "mojave"`.

## Reference
Known and Supported Platforms that WebDriver runs on: 
https://github.com/SeleniumHQ/selenium/blob/master/java/client/src/org/openqa/selenium/Platform.java
Doesn't include identifier for MacOSX 10.14 Mojave
Pattern pattern = Pattern.compile("^(\\d+)\\.(\\d+).*");
      Matcher matcher = pattern.matcher(version);
      if (matcher.matches()) {
        try {
          major = Integer.parseInt(matcher.group(1));
          min = Integer.parseInt(matcher.group(2));
        } catch (NumberFormatException e) {
          
        }
      }
      current.majorVersion = major;
      current.minorVersion = min;
    }
    return current;
  }
  /**
   * Extracts platforms based on system properties in Java and uses a heuristic to determine the
   * most likely operating system.  If unable to determine the operating system, it will default to
   * UNIX.
   *
   * @param osName the operating system name to determine the platform of
   * @return the most likely platform based on given operating system name
   */
  public static Platform extractFromSysProperty(String osName) {
    return extractFromSysProperty(osName, System.getProperty("os.version"));
  }
  /**
   * Extracts platforms based on system properties in Java and uses a heuristic to determine the
   * most likely operating system.  If unable to determine the operating system, it will default to
   * UNIX.