Allow inverters API to crear an alert for the user

[pferrariuy]

Feature Request

Description

Create the required method to allow an inverter API service to create a client / generator alert for the user. The alert can be use by the service to provide additional information when there is an error during the data retrieval that requried in the intervention of the user (for example the expiration of the API key).

Expected Behavior

Extend the InverterData class to store alerts of the location / generator that need to be stored, that will be later syncrhonize in the database.

Create examples on how to create the alert and their content, in order to be visuble for the user once que makes a login or by email.

Additional Context

Alert might be specif of the inverter, therefor, no label might be available to show the information, being the inverter service the one that generates all the message for the user.