[TCLCORE] New TIP #706: Expose three Tk "In Context" functions via stubs table

[Francois V. <fvo...@fr...>]

Hi all,

This is to let you know that I have written a new TIP:

     https://core.tcl-lang.org/tips/doc/trunk/tip/706.md

The goal is to expose 3 Tk functions in the stubs table. This is needed 
to let rtext (the revised text widget as a TEA package) build and link 
under macOS aqua. About rtext:

     https://chiselapp.com/user/fvogel/repository/rtext

Comments, thoughts, all welcome. Depending on the feedback I get, vote 
will be triggered in possibly less than a week.

Regards,

Francois