Search based on multiple properties #41
Description
Right now we allow a user to search between all devices on one property. We can use the property URI, value or physical. It would be nice to understand if we can make queries on multiple of them. In this way we could be able to find devices through their state, without using the state solution.
Actually, if we use the state as filtering option, we just transform it to the device query. Think. A status resource is just a combination of properties. This means that if we take the properties URI and values and we make a query on /devices, we get what we want.