feat: sort PDUs by CAN message priority

[t-bre]

Changes

• PDUs in the intermediate server schema are sorted by priority of the corresponding CAN message. Smaller number PDUs (higher priority in the telemetry protocol) correspond to smaller CAN ID values (higher priority in CAN).
• This is an initial implementation for feat: prioritise PDUs #13, but it could be improved by allowing us to specify our own priority through a custom DBC attribute (depends on feat: custom DBC attributes  #8 being solved first).

Additional Notes

Will create release v0.0.5 from this after review.

[t-bre]

@rureverek For info, we should think about how or if on-car telemetry will implement some kind of priority system for transmitting PDUs. Not sure what this would look like, but something to think about.

[AndreasDemenagas]

Looks good to me :)