[nemo-qml-plugin-systemsettings] Add removable storage model. Contributes to MER#1334

Emit profile change signal directly on setter

Add a simple removable media model. The available removable media is
currently limit to /dev/mmcblk1* devices. This is to match what
sd-utils (git@github.com:nemomobile/sd-utils.git) supports.

Fixes to ALS related display settings

Magnetic lid sensors might report closed state also when the cover is
folded underneath the device.

If use of ambient light sensor is allowed (ambientLightSensorEnabled
property) and lid close filtering is requested (lidSensorFilteringEnabled
property), MCE will ignore lid close events unless they happen in close
proximity to drop in ambient light level (cover in front obstructs also
the ambient light sensor).

MCE will adjust display brightness automatically when use of ambient
light sensor is allowed (ambientLightSensorEnabled property) and
autoBrightnessEnabled property is set to true.

[displaysettings] Added a property to DisplaySettings for controlling…

[displaysettings] Added a property to DisplaySettings for controlling the lid sensor. Contributes to JB#29182

[aboutsettings] Add diskUsageModel (Contributes to JB#29435)

[nemo-qml-plugin-systemsettings] Remove trailing linebreak from serial number. Fixes MER#1047

Use libusb-moded-qt5 to talk to usb_moded

[aboutsettings] Return serial number (Contributes to JB#26713)

Remove the QmSystem2 dependency, use timed and usb_moded directly

[datetimesettings] Remove QmTime dependency (use timed directly)
[usbsettings] Remove QmUsbMode usage (use usb_moded directly)
[usbsettings] Allow setting of current mode
[usbsettings] Re-use old enum values from qmsystem2 for compatibility
[usbsettings] Require usb-moded >= 0.82

[aboutsettings] Expose adaptationVersion (Contributes to JB#13494)

[diskusage] Various fixes

[devmode] Fast, file-based developer mode check (Fixes JB#20585)

Fix path size calculation issues

Wasn't removing ~/foo from /home, nor from /.

[plugin] Add disk usage component. Contributes to JB#14894

[diskusage] Add DiskUsage QML component