Parser for Teltonika Codec 8 (ID 0x08).
This is the original and most common Teltonika protocol. I/O element IDs and counts are 1 byte each, supporting up to 255 distinct AVL IDs.
I/O Element Layout
<<event_io_id::8, total_count::8,
n1_count::8, ...1-byte values...,
n2_count::8, ...2-byte values...,
n4_count::8, ...4-byte values...,
n8_count::8, ...8-byte values...>>