ICU-23042 CLDR-to-ICU, generate rbnf data for Gujarati

[mihnita]

Checklist

• Required: Issue filed: ICU-23042
• Required: The PR title must be prefixed with a JIRA Issue number. Example: "ICU-1234 Fix xyz"
• Required: Each commit message must be prefixed with a JIRA Issue number. Example: "ICU-1234 Fix xyz"
• Issue accepted (done by Technical Committee after discussion)
• Tests included, if applicable
• API docs and/or User Guide docs changed or added, if applicable

[mihnita]

Thank you,
M.