Added open-source license.

LICENSE

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+Copyright © 2024, UT-Battelle, LLC
+All rights reserved
+OPEN SOURCE LICENSE
+
+Subject to the conditions of this License, UT-Battelle, LLC hereby grants, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to use, copy, modify, merge, publish, distribute, and/or sublicense copies of the Software.
+
+1. Redistributions of Software must retain the above open source license grant, copyright and license notices, this list of conditions, and the disclaimer listed below.  Changes or modifications to, or derivative works of the Software must be noted with comments and the contributor and organization’s name.  If the Software is protected by a proprietary trademark owned by UT-Battelle, LLC or the Department of Energy, then derivative works of the Software may not be distributed using the trademark without the prior written approval of the trademark owner. 
+
+2. Neither the names of UT-Battelle, LLC nor the Department of Energy may be used to endorse or promote products derived from this Software without their specific prior written permission.
+
+3. The Software, with or without modification, must include the following acknowledgment:
+
+"This product includes software produced by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the Department of Energy.”
+
+
+******************************************************************************************************
+DISCLAIMER
+
+UT-BATTELLE, LLC AND THE GOVERNMENT MAKE NO REPRESENTATIONS AND DISCLAIM ALL WARRANTIES, BOTH EXPRESSED AND IMPLIED.  THERE ARE NO EXPRESS OR IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, OR THAT THE USE OF THE SOFTWARE WILL NOT INFRINGE ANY PATENT, COPYRIGHT, TRADEMARK, OR OTHER PROPRIETARY RIGHTS, OR THAT THE SOFTWARE WILL ACCOMPLISH THE INTENDED RESULTS OR THAT THE SOFTWARE OR ITS USE WILL NOT RESULT IN INJURY OR DAMAGE.  THE USER ASSUMES RESPONSIBILITY FOR ALL LIABILITIES, PENALTIES, FINES, CLAIMS, CAUSES OF ACTION, AND COSTS AND EXPENSES, CAUSED BY, RESULTING FROM OR ARISING OUT OF, IN WHOLE OR IN PART THE USE, STORAGE OR DISPOSAL OF THE SOFTWARE.
+
+***************************************************************************************************