kcg v0.1.0

First public version.

• read: one row per partition, one column per group, with log start and end; most advanced group, active groups and
  offsets below the log start marked.
• align --from oldest|newest|earliest|latest|<offset>|<group> --to <group>|all.
• delete (groups × topics × partitions) and clean (one reference group kept per topic, refusal with the
  conflicting partitions when ambiguous, --keep to decide).
• Dry run by default, --execute to write, --force to move offsets backward, groups with active members refused
  (classic and KIP-848), CSV backup before every write and restore.
• Connection as with the Kafka tools: --bootstrap-server, --command-config (SASL PLAIN/SCRAM, TLS in PEM or PKCS12).
• Tested on Kafka 3.9 and 4.4.

Install: download the archive for your system below (checksums in SHA256SUMS), or go install github.com/gnocent/kcg@v0.1.0.