revert bisq license and add haveno license

src/main/groovy/haveno.post-build.gradle

@@ -1,3 +1,20 @@
+/*
+ * This file is part of Bisq.
+ *
+ * Bisq is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * Bisq 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 Affero General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with Bisq. If not, see <http://www.gnu.org/licenses/>.
+ */
+
 /*
  * This file is part of Haveno.
  *
@@ -14,6 +31,7 @@
  * You should have received a copy of the GNU Affero General Public License
  * along with Haveno. If not, see <http://www.gnu.org/licenses/>.
  */
+
 plugins {
     id 'java'
 }