[Ur] ANNOUNCE urembed - file-to-urp converter

[Sergey Mironov]

Hi. I'm glad to announe Urembed.

https://github.com/grwlf/urembed

This tool embeds file(s) into the Ur/Web project by creating the
module containing

    datatype content = File_A | File_B ...
    val binary : content -> transaction blob

typical usage is

    $ urembed -o lib/autogen/Static.urp Style.css Script.js

Additionally, Urembed simplifies the usage of JavaScript FFIs by
writing signatures for all top-level JavaScript functions from FILE.js
to FILE_js.urs.

Haskell platform (plus a couple of packages from Hackage) and POSIX
environment are required.

Regards,
Sergey