[llvm] [libsycl] Add Maintainers.rst file (PR #168550)

[Aaron Ballman via llvm-commits]

================
@@ -0,0 +1,16 @@
+=====================
+libsycl Maintainers
+=====================
+
+This file is a list of the
+`maintainers <https://llvm.org/docs/DeveloperPolicy.html#maintainers>`_ for
+libsycl.
+
+Current Maintainers
+========
+
+| Alexey Bader
+| alexey.bader at intel.com (email), `bader <https://github.com/bader>`_ (GitHub)
+
+| Kseniya Tikhomirova
+| kseniya.tikhomirova at intel.com (email), `KseniyaTikhomirova <https://github.com/KseniyaTikhomirova>`_ (GitHub)
----------------
AaronBallman wrote:

It would be helpful to also list folks' Discourse and Discord handles as well; we want it to be easy for folks to contact maintainers.

https://github.com/llvm/llvm-project/pull/168550