add LICENSE and AUTHORS files

AUTHORS.txt

@@ -0,0 +1,33 @@
+== Project Maintainer: Qianqian Fang ==
+
+Qianqian is currently an Associate Professor in the 
+Department of Bioengineering at Northeastern University, USA.
+
+Address: Dept. of Bioengineering
+         Northeastern University
+         360 Huntington Ave, ISEC 206, Boston, MA 02115, USA
+URL: http://fanglab.org
+Email: <q.fang at neu.edu>
+
+BlenderPhotonics Website: http://mcx.space/bp
+MCX Website:              http://mcx.space
+Source Code:              http://github.com/COTILab/BlenderPhotonics
+
+
+== Contributing Authors ==
+
+* Copyright (c) 2021-2022, Qianqian Fang <q.fang at neu.edu>
+
+The current version has been significantly extended/rewritten
+by Qianqian Fang.
+
+
+* Copyright (c) 2021, Yuxuan (Victor) Zhang <zhang.yuxuan1 at northeastern.edu>
+
+The initial version of this software was developed by 
+Yuxuan (Victor) Zhang in 2021 as part of his MS Thesis 
+under the supervision of Prof. Qianqian Fang. The initial
+Github repository used for developing this software is at
+https://github.com/Knight680/BlenderPhotonics
+
+