Added a README file regarding WinRT support

To note, this file is currently formatted with CRLF line endings, rather than
LF, to allow the file to be viewed with Notepad.

BUGS.txt

@@ -0,0 +1,16 @@
+
+Bugs are now managed in the SDL bug tracker, here:
+
+    http://bugzilla.libsdl.org/
+
+You may report bugs there, and search to see if a given issue has already
+ been reported, discussed, and maybe even fixed.
+
+
+You may also find help on the SDL mailing list. Subscription information:
+
+    http://lists.libsdl.org/listinfo.cgi/sdl-libsdl.org
+
+Bug reports are welcome here, but we really appreciate if you use Bugzilla, as
+ bugs discussed on the mailing list may be forgotten or missed.
+