[statusbar] SIM panel for PIN entry

[env] Add QT_QUICK_CONTROLS_STYLE=Nemo to give the Nemo styles to homescreen

[config] Remove lipstick config from installation, does weird things in Jolla environment.

[statusbar] Wifi panel added for statusbar

[statusbar] Technologies for cellular connections.

[statusbar] Icon values for different wifi signal strengths.

[statusbar] Statusbar as Row with StatusbarItems.

Statusbar

[readme] Readme added.

New lockscreen

Desktop.js

[feeds] Feeds page added.

[uninstall] Uninstall/remove areas to homescreen.

[lock] Lock the screen from anywhere in the homescreen. Also kill application by dragging it down.

[toolbar] New toolbar on the bottom

[rpm] Fix Qt5 compositor depedency.

[covers] Remove application covers from window model and do not show cov...

TODO: will need to inherit this properly from a theme (once we have
notifications mockup in place)

[glacierui] Notifications modified as per some of the specs