NEWS: add intro and highlights of v0.9.14

re #542

Author: bk138

NEWS.md

@@ -1,4 +1,13 @@
-# 2022-12-xx: Version 0.9.14
+# 2022-12-18: Version 0.9.14
+
+0.9.14 represents a gradual improvement over 0.9.13 with lots of developments all over
+the place. [40 issues and pull requests](https://github.com/LibVNC/libvncserver/issues?q=milestone%3A%22Release+0.9.14%22+is%3Aclosed)
+were closed/merged with this release. Highlights on the LibVNCServer side are a
+refined multi-threaded implementation, support for Unicode clipboard data 📋❗ and an
+outbound-connection machinery that works for real world use cases. LibVNCClient received
+support for [SetDesktopSize](https://github.com/rfbproto/rfbproto/blob/master/rfbproto.rst#setdesktopsize)
+(which had been added server-side in 0.9.13) and a properly documented SSH-tunneling
+setup.
 
 ## Overall changes: