Signed-off-by: Maysun J Faisal maysunaneek@gmail.com

What does this PR do?

• Provides a script to generate a changelog generator. Inspired by odo's script
• Move the updateApi.sh to the scripts dir

What issues does this PR fix or reference?

N/A

Is your PR tested? Consider putting some instruction how to test your changes

Yes, made sure the changelog is generated properly and the devfile/api schemas are updating properly.