Allow for HTML options on image partial

[markmead]

Description
Allows the passing of HTML attributes to the image partial.

Recently added this to a project as I needed a class passed down to the image.

Little unsure if there's a better alternative to options ||= {} so any guidance there would be great! 🙌

Checklist:

• I have followed Pull Request guidelines
• I have added a detailed description into each commit message
• I have updated Guides and README accordingly to this change (if needed)
• I have added tests to cover this change (if needed)
• I have attached screenshots to this PR for visual changes (if needed)

[aldesantis]

This looks good, thanks! I think options ||= {} is fine since it follows the convention for other local variables.