function CustomElementSubClass() {
			return CustomElementBase.apply(this, arguments);
		}
Creates new class which will inherit CustomElementBase.
An optional object can be passed with the property <code>privateProperties</code> as an array of strings for each of the control's private properties that should not be exposed by the custom element.

@static
@param {sap.ui.core.Control} ControlClass A UI5 class that will be wrapped in the custom html element.
@param {object} [mSettings] Object with settings for the new control.
@param {string[]} [mSettings.privateProperties] The control's private properties that should not be exposed by the custom element.
@returns {sap.ui.integration.customElements.CustomElementBase} New class which inherits CustomElementBase.