settings

`settings` is a built-in global object for reading and writing host application settings.

It is used directly by name. Do not call `settings()`.

Returns `true` if a setting with `name` exists.

if (settings.exists('displayX'))
{
    print('setting exists');
}

Returns the setting value. If the setting does not exist, an error is raised.

x = settings.get('displayX');

Sets a setting value and returns an OK result. If the setting does not exist or the value is invalid, an error is raised.

settings.set('displayX', 100);

Known settings can also be read as properties:

x = settings.displayX;

Use `exists(name)` before reading optional or host-version-specific settings.

`settings` is a built-in global object. The name itself cannot be overwritten:

settings = 1;     // error

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