Added LICENSE

Solver.cpp

@@ -1,3 +1,20 @@
+
+//Constant Chroma - stabilizes video chroma
+//Copyright (C) 2018  Michael Kuc
+
+//This program is free software: you can redistribute it and/or modify
+//it under the terms of the GNU General Public License as published by
+//the Free Software Foundation, either version 3 of the License, or
+//(at your option) any later version.
+
+//This program is distributed in the hope that it will be useful,
+//but WITHOUT ANY WARRANTY; without even the implied warranty of
+//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//GNU General Public License for more details.
+
+//You should have received a copy of the GNU General Public License
+//along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
 #include <opencv2/core.hpp>
 #include <opencv2/imgcodecs.hpp>
 #include <opencv2/imgproc/imgproc.hpp>