Added explicit license file

LICENSE.txt

@@ -0,0 +1,20 @@
+ISC License
+
+Copyright 2019-2020 Vicky Sundesha, Javier Garrayo, Barcelona Supercomputing Center
+Copyright 2021-2022 Dominik Brüchner, Barcelona Supercomputing Center
+Copyright 2024 José Mª Fernández, Barcelona Supercomputing Center
+
+Permission to use, copy, modify, and/or distribute this software
+for any purpose with or without fee is hereby granted, provided
+that the above copyright notice and this permission notice
+appear in all copies.
+
+THE SOFTWARE IS PROVIDED “AS IS” AND THE AUTHOR DISCLAIMS ALL
+WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
+CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+

package.json

@@ -9,7 +9,7 @@
     "dev": "webpack-cli src/app.js --output=build/build.js -d -w;",
     "test": "echo \"Error: no test specified\" && exit 1"
   },
-  "author": "Javier Garrayo <javier.garrayo@bsc.es>, Vicky Sundesha <vicky.sundesha@bsc.es>",
+  "author": "Javier Garrayo <javier.garrayo@bsc.es>, Vicky Sundesha <vicky.sundesha@bsc.es>, Dominik Brüchner <dominik.bruchner@bsc.es>, José Mª Fernández <jose.m.fernandez@bsc.es>",
   "license": "ISC",
   "devDependencies": {
     "css-loader": "^1.0.1",