Add an electron user interface to run in user space

[Allow2CEO]

And provide elevated access to the daemon for admin users

The intention is the daemon should run in the service space and not be able to be touched by non-privileged users. There should be an installer which installs the daemon and the user space app. Then the userspace app communicates with the daemon with an auth token specific for the platform to authorise access to control the daemon.

[Allow2CEO]

This needs to support:

• pairing by an OS admin (including via QRcode)

And once paired, an OS admin can:

• auto-discover and showing a list of home devices to enable association with children

[Allow2CEO]

To be determined: Use existing pairings to auto-pair new pairings?