Missing Commands from Spec

* `FUNC_ID_ZW_ENABLE_SUC` (0x52) - Enable SUC functionality
* `FUNC_ID_ZW_AES_ECB` (0x67) - AES encryption
* `FUNC_ID_NVM_BACKUP_RESTORE` (0x2E) - NVM backup/restore
* `FUNC_ID_ZW_GET_PROTOCOL_VERSION` (0x09) - Separate from library version
* Several bridge controller commands (0xA0-0xAB)