Adding license to julia folder

.gitignore

@@ -22,3 +22,4 @@ lib/*
 *.log
 *.sh
 sbatch*
+*.obj

LICENSE

@@ -13,7 +13,9 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
 
-This product bundles the file "src/Common/dlaran.f", which is available under a modified "3-Clause BSD" license. For details, see src/Common/dlaran.f.
+This product bundles the file "src/Common/dlaran.f", 
+which is available under a modified "3-Clause BSD" license. 
+For details, see src/Common/dlaran.f.
 This product bundles the files "src/Common/dfft.f", "src/Helmholtz/hwts3e.f",
 "src/Helmholtz/hwts_3d_iprec0.txt",
 "src/Helmholtz/hwts_3d_iprec1.txt",

julia/AUTHORS

@@ -0,0 +1,17 @@
+FMM3D development team
+
+Travis Askham
+Alex Barnett
+Zydrunas Gimbutas
+Leslie Greengard <[email protected]>
+Libin Lu
+Jeremy Magland 
+Dhairya Malhotra
+Manas Rachh <[email protected]>
+Vladimir Rokhlin
+Michael O'Neil 
+
+The contributions of Alex Barnett, Leslie Greengard, 
+Libin Lu, Jeremy Magland, Dhairya Malhotra, and Manas Rachh are 
+works made for hire for The Simons Foundation, Inc.
+

julia/LICENSE

@@ -0,0 +1,36 @@
+Copyright (C) 2019-2023 The Simons Foundation, Inc., FMM3D Development Team 
+(see AUTHORS) - All Rights Reserved.
+
+FMM3D as a whole is licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+This product bundles the file "src/Common/dlaran.f", 
+which is available under a modified "3-Clause BSD" license. 
+For details, see src/Common/dlaran.f.
+This product bundles the files "src/Common/dfft.f", "src/Helmholtz/hwts3e.f",
+"src/Helmholtz/hwts_3d_iprec0.txt",
+"src/Helmholtz/hwts_3d_iprec1.txt",
+"src/Helmholtz/hwts_3d_iprec2.txt",
+"src/Helmholtz/hwts_3d_iprec3.txt",
+"src/Helmholtz/hwts_3d_iprec4.txt",
+"src/Helmholtz/hnumfour.f",
+"src/Helmholtz/hnumphys.f",
+"src/Laplace/lwtsexp_sep1.f", and
+"src/Laplace/lwtsexp_sep2.f",
+which are available under the public domain. See each file for details.
+
+References
+===========
+Also, if you find this library useful, or it helps you in creating
+software or publications, please acknowledge that fact by citing this
+repository along with the author names, and any corresponding journal
+article.