sidecar: use RDL-generated types for sequencer state, step, and error - #2652

sidecar: use RDL-generated types for sequencer state, step, and error#2652

Aaron-Hartwig wants to merge 4 commits into

masteroxidecomputer/hubris:masterfrom

aaron/sidecar-seq-typesoxidecomputer/hubris:aaron/sidecar-seq-typesCopy head branch name to clipboard