Fix: unify CW message identifier fields in rsp03.ksy
This MR unifies the CW message identifier fields into a single field:
- Removed duplicate cw_g/cw_h/cw_i identifiers
- Added a unified
cw_no001_Message_Identifier - Simplifies Grafana visualization and avoids redundant field duplication
Signed-off-by: czh00361 czh00361@nifty.com