Add NOTICE file

NOTICE

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+                 Smack
+
+       An open-source XMPP library
+      maintained by Florian Schmaus
+
+ https://igniterealtime.org/projects/smack
+
+
+Authors:
+
+Abmar Barros
+Aditya Borikar
+Alexander Tovstonozhenko
+Alex Wenckus
+Andrew Wright
+Andrey Prokopenko
+Andrey Sokolov
+Andrey Starodubtsev
+Andri Khrisharyadi
+Andriy Tsykholyas
+Anno van Vliet
+Bastien Rouiller
+Benjamin JALON
+Bill Lynch
+Boris Grozev
+Candy Lohse
+Cem Yabansu
+Chris Deering
+Christoph Fiehe
+Craig Hesling
+Damian Minkov
+Daniele Ricci
+Daniel Henninger
+Daniel Hintze
+Daryl E. Herzmann
+Dave Cridland
+Dave Stanley
+David Black
+Derek DeMoro
+Dmitry Deshevoy
+Eng ChongMeng
+Fernando Martinez Herrera
+Fernando Ramirez
+Florian Kimmann
+Florian Schmaus
+Francisco Vives
+Gaston Dombiak
+Georg Lukas
+Gilles Cornu
+Gligor Selimovic
+Greg Thomas
+Grigory Fedorov
+Günther Niess
+Guus der Kinderen
+Henning Staib
+Holger Bergunde
+Hugues Bruant
+Ingo Bauersachs
+Ishan Khanna
+Jae Jang
+Jared DiCioccio
+Jason Sipula
+Jay Kline
+Jeff Williams
+Jesus Fuentes
+John Haubrich
+Júlio Cesar Bueno Cotta
+Lars Noschinski
+Luca Stucchi
+Luke Granger-Brown
+Marcel Heckel
+Marilyn Daum
+Matteo Campana
+Matthew Wild
+Matt Tucker
+Michael Will
+Miguel Hincapie
+Mohsen Hariri
+Oliver Mihatsch
+Paul Schaub
+Pete Matern
+Piotr Nosek
+Rajat Kumar Gupta
+Robin Collier
+Simon Schuster
+Son Goku
+Tairs Rzajevs
+Thiago Camargo
+Thibaut Le Guilly
+Thomas Pocreau
+Tim Jentz
+Timothy Pitt
+Tomáš Havlas
+Tomas Nosek
+Vadim Fite
+Vaibhav Ranglani
+V Lau
+Vyacheslav Blinov
+Wolf Posdorfer
+Xiaowei YAN
+Yash Thakkar

smack-core/src/main/resources/org.jivesoftware.smack/NOTICE

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+../../../../../NOTICE