Adding table logic to DocBook reader

[lifeunleaded]

With the introduction of table custom styles in the docx writer, I'd like to add parsing of the tabstyle attribute in the DocBook reader. While I'm at it, I'd like to also add parsing of id and class (which for tables is an XML attribute in the Docbook schema).

I've got working code (changing parseTable to use tableWith in the DocBook reader), but as per the contribution guidelines, I'm submitting the idea for scrutiny first before adding tests and writing a pull request.

Any opinions?

[jgm]

id and class certainly welcome. With tabstyle, is your idea to populate custom-style with this?

[lifeunleaded]

@jgm yes, exactly. They serve very similar purposes in an abstract sense, so a user coming from docbook could match existing values for tabstyle by creating custom table styles with the same name in the custom reference docx. It seems to work and gives a very pleasant flow without needing a filter.

[lifeunleaded]

#10183 is in place to show the idea.

[lifeunleaded]

Added #10181 for this