[ITA] lua-5.3.6, lua-5.4.2

[Lemures Lemniscati]

ITA for libnice, which has been maintained by Yaakov [1].

Now, the latest upstream of lua is 5.4.2, and last 5.3-release is 5.3.6 [2].

A new candidate cygport files are placed at [3] for 5.4.2,
and at [4] for 5.3.6.

They build successfully on Cygwin AppVeyor CI
  5.4.2 ID 1706: [5]
  5.3.6 ID 1705: [6]

Generated package files are placed at [7] for 5.4.2, and
at [8] for 5.3.6.

Packaging is rearranged from 5.3.5:
  cyglua-5.3.dll is moved into a new package liblua5.3
  (correspondingly cyglua-5.4.dll is contained in liblua5.4)
  lua-devel is obsoleted by liblua-devel


[1]: https://cygwin.com/git/?p=git/cygwin-packages/lua.git
[2]: https://www.lua.org/versions.html

[3]: https://github.com/cygwin-lem/lua-cygport/tree/n_5.4.2-1
[4]: https://github.com/cygwin-lem/lua-cygport/tree/n_5.3.6-1

[5]: https://cygwin.com/cgi-bin2/jobs.cgi?id=1706
  or https://ci.appveyor.com/project/cygwin/scallywag/builds/37189475
[6]: https://cygwin.com/cgi-bin2/jobs.cgi?id=1705
  or https://ci.appveyor.com/project/cygwin/scallywag/builds/37189473

[7]: https://github.com/cygwin-lem/lua-cygport/tree/n_5.4.2-1_gh-pages
[8]: https://github.com/cygwin-lem/lua-cygport/tree/n_5.3.6-1_gh-pages


Regards, 

Lem