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
* the LINUX if a part of the UNIX family, the XP is a part of the WINDOWS family.
   *
   * @return the family platform for the current one, or {@code null} if this {@code Platform}
   *         represents a platform family (such as Windows, or MacOS)
   */
  public abstract Platform family();
  private boolean isCurrentPlatform(String osName, String matchAgainst) {
    return osName.contains(matchAgainst);
  }
  private boolean isExactMatch(String osName, String matchAgainst) {
    return matchAgainst.equals(osName);
  }
  /**
   * Returns the major version of this platform.
   *
   * @return the major version of specified platform
   */
  public int getMajorVersion() {
    return majorVersion;
  }
  /**
   * Returns the minor version of this platform.
   *
   * @return the minor version of specified platform
   */
  public int getMinorVersion() {
    return minorVersion;
  }
}