docs: Adds RunUO-Encryption notice attribution to DarkStorm (#2369)

THIRD-PARTY-NOTICES

@@ -85,33 +85,24 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 IN THE SOFTWARE.
 
-License notice for wepoll
+Attribution notice for RunUO-Encryption
 ---------------------------
-wepoll - epoll for Windows
-https://github.com/piscisaureus/wepoll
+The client encryption support in ModernUO (Projects/Server/Network/Encryption/)
+is based on protocol research and reverse engineering originally performed by
+Sebastian Hartte (DarkStorm) for the RunUO-Encryption project.
 
-Copyright 2012-2020, Bert Belder <bertbelder@gmail.com>
-All rights reserved.
+His work identified:
+- The login packet XOR cipher algorithm used by the Ultima Online client
+- The Twofish + MD5 game packet encryption scheme
+- The login key values for client versions prior to 6.0.5
 
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are
-met:
+The Twofish block cipher implementation used in RunUO-Encryption was a C# port
+by Shaun Wilde, originally published at:
+http://www.codetools.com/csharp/twofish_csharp.asp
 
-  * Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer.
+ModernUO's implementation is a clean rewrite using modern C# (Span<T>, SIMD,
+BitOperations) but the underlying protocol knowledge originates from
+Sebastian Hartte's reverse engineering effort.
 
-  * Redistributions in binary form must reproduce the above copyright
-    notice, this list of conditions and the following disclaimer in the
-    documentation and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+RunUO-Encryption was licensed under the GNU General Public License v2:
+https://www.gnu.org/licenses/old-licenses/gpl-2.0.html