On-premises: Proxy handshake

As a Qt Company we want the on-premises version number and operating system info

So that we get relevant information about the environment where the on-premises server is used

As a Qt Company we want to parametrize certain aspects of the server behaviour.

So that we can dynamically change the behaviour if needed

• license sync interval
• data upload interval
• login renewal interval

Basically this means that these values will be handed to on-premises server during the handshake of on-premises and cloud backend