lookandfeel: Add a special label
lookandfeel: Add information pane

It has time, date and power source for now.
lookandfeel: Move UserDelegate to components
lookandfeel: Remove arrows in users list
lookandfeel: Move UsersView to components
lookandfeel: Add a decoration around the user face
lookandfeel: UsersView directly inherits from ListView
lookandfeel: Remove spacing property in UsersView

Just set ListView's spacing.
lookandfeel: Expose an alias to UserDelegate icon
lookandfeel: Add dummydata for loginmanager

Partially copied from Plasma.
lookandfeel: Fix indentation
lookandfeel: Set login manager main item size according to screen

Needed to get the correct window size during tests with qmlscene.
lookandfeel: Properly size users view in greeter

Users view is as large as half the window and height
accomodates one icon.
lookandfeel: Frame around greeter delegates and other improvements

Add a frame svg around the picture and thus remove opacity mask and
animate the opacity property.

Move mouse handling into a child mouse area that emits a signal when
hovered or clicked (those events will be handled from UsersView).

Keep desaturation effect but animate it.
loginmanager: Set greeter delegate size and handle mouse events
lookandfeel: Use color group for greeter
lookandfeel: Scale greeter password field size according to units

Use Plasma units to scale the password field.
lookandfeel: Use Icon for greeter user delegates

Icon can do both pictures and icon names and also support symbolic
icons colored with text color.