Bidi Support design proposal for (Numeric Shaping , National Calendar and UI Mirroring)

This is the proposed low level design of the three requested bidi features ( #2156 , #2154 and #1852 ).

- Creation of **bidi / js** folders under notebook/static to wrap the whole bidi work as the below screenshot.


- Under **bidi /js** there will be two files:

- **bidi.js:** the interface that hold the bidi function to be invoked.
- **numericshaping.js:** has the core functions of numeric shaping support.


- **Following is bidi.js in more details:**
The bidi API contains the following functions with respect to each feature:


At the moment , I need any UI component to control the user preference if we enable the bidirectional behavior.

Thanks and Waiting your Comments .