⚙️ Added is_instance to branch attributes

[sschleemilch]

The info might be of interest to exporters and I think it makes sense to have that info in the internal tree

Related: COVESA/vehicle_signal_specification#749

Example:

Vehicle:
  type: branch
  description: Vehicle

Vehicle.Door:
  description: Door
  type: branch
  instances:
  - Row[1,2]

Vehicle.Door.Row1.Window:
  type: branch
  description: Window

vspec export tree -s test.vspec.yaml --attr is_instance:

Vehicle
is_instance=False
└── Door
    is_instance=False
    ├── Row1
    │   is_instance=True
    │   └── Window
    │       is_instance=False
    └── Row2
        is_instance=True

[erikbosch]

Should we possibly have a test case somewhere?

[sschleemilch]

Should we possibly have a test case somewhere?

Will do

[sschleemilch]

Should we possibly have a test case somewhere?

Done

[erikbosch]

MoM:

• Daniel presented the solution
• Please review, possible merge decision next week

[erikbosch]

MoM:

• Merge