Refs #2363: Add extra feature to support widget

Added a new buton on support widget.

On click action allows to collect necessary info about Pulse2 installation:
- debian version (lsb_release -a)
- dpkg selections
- list of product packages
- uuid of install
- config files
- logs

When archive is created, a download link allows to get this file
which can be sent to helpdesk support.