org-num-mode for RTL languages

[Daniel Fleischer]

Hi, 

Org-num-mode doesn't work for RTL language (e.g. Hebrew) when 
`bidi-paragraph-direction` is set to `left-to-right`.  
It does work when one sets `bidi-paragraph-direction` to nil. 

Example text:


* Test

* עברית

* עוד אחד

* Back to English



I would expect it to work either way because sometimes the file reads better 
when everything is aligned left-to-right. 

Thanks, 
Daniel