Rework to use KUKSA.val databroker gRPC API

Rework to move from the WebSocket API with the older KUKSA.val
server to the gRPC "VAL" API of the databroker.

Changes include:
- All VISS WebSocket API code has been removed, and the signal
  providers replumbed to be driven by a new VssClient class with
  a hvac-specific child class to hold all the gRPC API
  handling.
- The generated code for the VAL API and its dependencies has
  been checked in under lib/generated, as there still does not
  seem to be a good way to generate it during the Flutter build.
- The configuration file is now expected to be "hvac.yaml" instead
  of "hvac_config.yaml".  The authorization token field name has
  been renamed to "authorization", and there are new "use-tls" and
  "ca-certificate" configuration fields.  TLS is disabled by default
  for now, and the default CA certificate is /etc/kuksa.val/CA.pem.
- Bumped minimum SDK version to 2.18 in pubspec.yaml to enable
  "super" keyword support.  This matches what the version was set
  to in flutter-homescreen.
- The Vehicle and VehicleSignals classes have been reworked into
  a VehicleAcStatus class + provider, and users have been updated
  to use the Riverpod provider select functionality to attempt to
  reduce naive over-updating.
- VSS paths have been rationalized to use the definitions in the
  VSSPath class so only one location will need to be updated on any
  signal name changes.
- Added .gitignore file from flutter-homescreen to keep things
  clean in the future.

Bug-AGL: SPEC-4762

Signed-off-by: Scott Murray <scott.murray@konsulko.com>
Change-Id: Idbabb54ead52bf38796f264a3c8a270aa170e2cd

1 files changed, 21 insertions, 0 deletions

diff --git a/lib/generated/google/protobuf/timestamp.pbjson.dart b/lib/generated/google/protobuf/timestamp.pbjson.dart
new file mode 100644
index 0000000..421f785
--- /dev/null
+++ b/lib/generated/google/protobuf/timestamp.pbjson.dart
@@ -0,0 +1,21 @@
+///
+//  Generated code. Do not modify.
+//  source: google/protobuf/timestamp.proto
+//
+// @dart = 2.12
+// ignore_for_file: annotate_overrides,camel_case_types,constant_identifier_names,deprecated_member_use_from_same_package,directives_ordering,library_prefixes,non_constant_identifier_names,prefer_final_fields,return_of_invalid_type,unnecessary_const,unnecessary_import,unnecessary_this,unused_import,unused_shown_name
+
+import 'dart:core' as $core;
+import 'dart:convert' as $convert;
+import 'dart:typed_data' as $typed_data;
+@$core.Deprecated('Use timestampDescriptor instead')
+const Timestamp$json = const {
+  '1': 'Timestamp',
+  '2': const [
+    const {'1': 'seconds', '3': 1, '4': 1, '5': 3, '10': 'seconds'},
+    const {'1': 'nanos', '3': 2, '4': 1, '5': 5, '10': 'nanos'},
+  ],
+};
+
+/// Descriptor for `Timestamp`. Decode as a `google.protobuf.DescriptorProto`.
+final $typed_data.Uint8List timestampDescriptor = $convert.base64Decode('CglUaW1lc3RhbXASGAoHc2Vjb25kcxgBIAEoA1IHc2Vjb25kcxIUCgVuYW5vcxgCIAEoBVIFbmFub3M=');