Add volume control to bottom panel

Changes:
- Import a reworked version of the KUKSA.val client code from the
  Flutter dashboard app, with the aggregated signal Riverpod provider
  replaced with per-signal providers for the signal the homescreen
  needs and a couple of temperature ones it might use.  Using separate
  providers is more in-line with recommended Riverpod best practices.
- Various tweaks to enable using Riverpod.
- Split the bottom panel out into its own widget, and add a stack in
  it to layer the default logo panel with the volume control slider,
  which has been added as a new widget definition to provide the hook
  to drive timer based lowering behavior like the Qt homescreen does.
- The KUKSA.val connection widget has been added to the bottom panel
  rather than overriding the top-level widget as in the dashboard and
  HVAC apps.  This seems preferable with respect to still providing
  some functionality in the event KUKSA.val is unavailable.
- Remove the old demo dashboard and HVAC pages that are now unused,
  along with the image assets they needed, to allow cleaning up
  pubspec.yaml and ease maintenance.

Bug-AGL: SPEC-4659

Signed-off-by: Scott Murray <scott.murray@konsulko.com>
Change-Id: I5d9180a3461948a58321564e71134c4961ce0ef7

1 files changed, 44 insertions, 0 deletions

diff --git a/lib/vehicle-signals/vss_path.dart b/lib/vehicle-signals/vss_path.dart
new file mode 100644
index 0000000..3bfc9c1
--- /dev/null
+++ b/lib/vehicle-signals/vss_path.dart
@@ -0,0 +1,44 @@
+// SPDX-License-Identifier: Apache-2.0
+class VSSPath {
+  static const String vehicleSpeed = "Vehicle.Speed";
+
+  static const String vehicleEngineRPM =
+      "Vehicle.Powertrain.CombustionEngine.Speed";
+
+  static const String vehicleFuelLevel = "Vehicle.Powertrain.FuelSystem.Level";
+
+  static const String vehicleInsideTemperature =
+      "Vehicle.Cabin.HVAC.AmbientAirTemperature";
+
+  static const String vehicleOutsideTemperature =
+      "Vehicle.Exterior.AirTemperature";
+
+  static const String vehicleFrontLeftTire =
+      "Vehicle.Chassis.Axle.Row1.Wheel.Left.Tire.Pressure";
+
+  static const String vehicleFrontRightTire =
+      "Vehicle.Chassis.Axle.Row1.Wheel.Right.Tire.Pressure";
+
+  static const String vehicleRearLeftTire =
+      "Vehicle.Chassis.Axle.Row2.Wheel.Left.Tire.Pressure";
+
+  static const String vehicleRearRightTire =
+      "Vehicle.Chassis.Axle.Row2.Wheel.Right.Tire.Pressure";
+
+  static const String vehicleIsChildLockActiveLeft =
+      "Vehicle.Cabin.Door.Row2.Left.IsChildLockActive";
+
+  static const String vehicleIsChildLockActiveRight =
+      "Vehicle.Cabin.Door.Row2.Right.IsChildLockActive";
+
+  static const String vehicleCurrentLongitude =
+      "Vehicle.CurrentLocation.Longitude";
+
+  static const String vehicleCurrentLatitude =
+      "Vehicle.CurrentLocation.Latitude";
+
+  static const String vehicleFuelRate = "Vehicle.OBD.FuelRate";
+
+  static const String vehicleMediaVolume =
+      "Vehicle.Cabin.Infotainment.Media.Volume";
+}