[DOC] Drivers/App guidelines improvment

[Salem-Tho]

on this page : (https://www.luos.io/docs/luos-technology/services/create-services)

A user asks a question: "An app can use custom service types" does this imply that driver services cannot use a custom service type?
Information about the type of service is not really clear. place documentation from the point of view of a new user and guide them thought the creation of a service

1. What is the kind of my service: driver (HW dependent) or App
2. If it's a driver: check the type of service list and which OD you will need to use! Mandatory for global user luos compatibility
3. If it's a driver and there is no type corresponding in the list. Develop your own service add to the list and your .h files in OD and contribute to Luos with a pull request on our GitHub!
4. If it's an Application that can be reused and shared with other users develop your own service and contribute to Luos with a pull request on our GitHub!
5. If it's a specific Application for your product feel free to create a custom type that you can add to the product config files in all nodes of your product