Support for Inline Ruby Comments for when extracting Ruby code in `herb_extract_ruby`

[marcoroth]

In #98 we updated the herb_extract_ruby method to skip over ERB Comment Nodes (<%#), which works great.

However for this variation it doesn't work, since it's treated as a regular ERB Content Node which has a Ruby comment inside of it:

<% if true %><% # Comment here %><% end %> 

We should find a way to also skip over this.

[marcoroth]

Resolved via #825