Separate the .repos in the sample packages and split them into a separate container

[youtalk]

https://github.com/autowarefoundation/autoware/blob/main/autoware.repos currently includes many packages meant for sample code, such as tamagawa_imu_driver and sample_sensor_kit_launch.
First, manage these packages with a separate .repos file.

Next, create a separate container image that includes only these packages, which will help reduce the size of the main container and improve availability.

[xmfcx]

• sample_sensor_kit_launch
• sample_vehicle_launch
• autoware_individual_params

These are required for running the tutorials. If these are separated, we should update the documentation with steps to pull these too.

But my concern is, .repos files are already very fragmented. Developers now have to pull more and more .repos files and I'd prefer if we could maintain a comprehensive .repos file for developers.

I agree with moving tamagawa_imu_driver and pacmod_interface out as vendor specific packages. But not for the repositories that contain things required for the demos.