UserAgent parser must detect Device Type

[absorbb]

Problem

we cannot accurately guess device type based on operating system. So we need extra field for device type . But user agent service currently used doesn't support device type detection

Solution

Switch Jitsu default user agent service to free implementation that supports device types, e.g: https://github.com/avct/uasurfer https://github.com/mileusna/useragent or something else

Add support for udger: https://github.com/udger/udger Our users may have subscription to udger and must be able to use it.