getUShellService(sServiceName) {
			if (sServiceName) {
				const oUShellContainer = this.getUshellContainer();
				if (oUShellContainer) {
					return oUShellContainer.getServiceAsync(sServiceName);
				}
			}
			return Promise.resolve();
		}
Returns a Promise resolving with the requested Unified Shell service if available

@param {string} sServiceName UShell service name (e.g. "URLParsing")
@returns {Promise<object|undefined>} Returns UShell service if available or undefined