startCompanion
Starts the companion that relates to the specified node. This will start on the phone, irrespective of whether the specified node is a phone or a watch.
When called from a watch node, it is required that the same app is installed on the specified node, otherwise a AppHelperResultCode.APP_HELPER_RESULT_TIMEOUT is expected. See AppHelperNodeStatus.appInstallationStatus in order to check the installation status.
Return
Whether launch was successful or not.
Parameters
nodeId
The node to launch on.