Copyright for undertow source package in Focal

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: Undertow
Source: https://github.com/undertow-io/undertow
Files-Excluded:
 *.class

Files: *
Copyright: 2012-2020, Redhat Inc.
License: Apache-2.0

Files: debian/*
Copyright: 2015-2020, Markus Koschany 
License: Apache-2.0

Files: debian/patches/ALPN.patch
Copyright: 1995-2014, Mort Bay Consulting Pty. Ltd.
License: Apache-2.0

License: Apache-2.0
 On Debian systems, the full text of the Apache-2.0 license
 can be found in the file '/usr/share/common-licenses/Apache-2.0'