feat: support multiple table readers

[egorchakov]

• add support for multiple table readers
• add a protobuf -> pl.DataFrame mcap decoder factory
• replace CarlaRecordsTableBuilder with JsonTableReader

[sandhawalia]

LGTM. Maybe we overlooked, after adding support for video decoding (CPU/GPU), we didn't add a sample dataset config which uses video CPU / GPU decoder. Both yaak.yaml/carla.yaml have DirectoryFrameReader.

Does it make sense to add atleast one of these ? Or convert one of the existing one to use HW accelerated video decoding ?

examples/config_templates/dataset/yaak.gpu.yaml
examples/config_templates/dataset/carla.gpu.yaml

[egorchakov]

@sandhawalia

Maybe we overlooked, after adding support for video decoding (CPU/GPU), we didn't add a sample dataset config which uses video CPU / GPU decoder. Both yaak.yaml/carla.yaml have DirectoryFrameReader.

will address once we move examples to notebooks