Adapt new changes or enhancements of DO v2 APIs

[jeevatkm]

Changelogs: Make changes if necessary

• [x] https://developers.digitalocean.com/documentation/changelog/api-v2/lets-encrypt-support-for-certificate-resources/
• [x] https://developers.digitalocean.com/documentation/changelog/api-v2/auto-formatting-support-for-volumes/
• [x] https://developers.digitalocean.com/documentation/changelog/api-v2/create-domains-without-providing-an-ip-address/
• [x] https://developers.digitalocean.com/documentation/changelog/api-v2/adding-tagged-uri/
• [x] https://developers.digitalocean.com/documentation/changelog/api-v2/support-for-custom-images-and-image-tagging/
• [x] https://developers.digitalocean.com/documentation/changelog/api-v2/add-volume-tagging/

[jeevatkm]

Existing APIs enhancement and new API to existing group are done 😄