Add sundials licence file (#3196)

SUNDIALS license from Release 2.2.0, March 2006

src/sundials/LICENSE

@@ -0,0 +1,63 @@
+Copyright (c) 2002, The Regents of the University of California. 
+Produced at the Lawrence Livermore National Laboratory.
+Written by S.D. Cohen, A.C. Hindmarsh, R. Serban, 
+           D. Shumaker, and A.G. Taylor.
+UCRL-CODE-155951    (CVODE)
+UCRL-CODE-155950    (CVODES)
+UCRL-CODE-155952    (IDA)
+UCRL-CODE-155953    (KINSOL)
+All rights reserved. 
+
+This file is part of SUNDIALS.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+
+1. Redistributions of source code must retain the above copyright
+notice, this list of conditions and the disclaimer below.
+
+2. Redistributions in binary form must reproduce the above copyright
+notice, this list of conditions and the disclaimer (as noted below)
+in the documentation and/or other materials provided with the
+distribution.
+
+3. Neither the name of the UC/LLNL nor the names of its contributors
+may be used to endorse or promote products derived from this software
+without specific prior written permission.
+
+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
+REGENTS OF THE UNIVERSITY OF CALIFORNIA, THE U.S. DEPARTMENT OF ENERGY
+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.
+
+Additional BSD Notice
+---------------------
+1. This notice is required to be provided under our contract with
+the U.S. Department of Energy (DOE). This work was produced at the
+University of California, Lawrence Livermore National Laboratory
+under Contract No. W-7405-ENG-48 with the DOE.
+
+2. Neither the United States Government nor the University of
+California nor any of their employees, makes any warranty, express
+or implied, or assumes any liability or responsibility for the
+accuracy, completeness, or usefulness of any information, apparatus,
+product, or process disclosed, or represents that its use would not
+infringe privately-owned rights.
+
+3. Also, reference herein to any specific commercial products,
+process, or services by trade name, trademark, manufacturer or
+otherwise does not necessarily constitute or imply its endorsement,
+recommendation, or favoring by the United States Government or the
+University of California. The views and opinions of authors expressed
+herein do not necessarily state or reflect those of the United States
+Government or the University of California, and shall not be used for
+advertising or product endorsement purposes.