add copyright and license to jar (#7520)

* add copyright and license to jar

* add copyright and license to META-INF

Author: tobi5775

COPYRIGHT

@@ -0,0 +1,13 @@
+Copyright (c) 2016-present, RxJava Contributors.
+
+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.

build.gradle

@@ -87,6 +87,12 @@ animalsniffer {
 }
 
 jar {
+    from('.') {
+        include 'LICENSE'
+        include 'COPYRIGHT'
+        into('META-INF/')
+    }
+
     // Cover for bnd still not supporting MR Jars: https://github.com/bndtools/bnd/issues/2227
     bnd('-fixupmessages': '^Classes found in the wrong directory: \\\\{META-INF/versions/9/module-info\\\\.class=module-info}$')
     bnd(