Copyright for elan source package in Mantic

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: elan
Upstream-Contact: Lean Prover https://github.com/leanprover/elan
Source: https://github.com/leanprover/elan/

Files: *
Copyright: 2016, The Rust Project Developers
 2018, Sebastian Ullrich
License: Apache-2.0 or Expat

Files: debian/*
Copyright: 2021-2023, Christopher Hoskin 
License: Apache-2.0 or Expat


License: Apache-2.0
 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.
 .
 On Debian systems, the complete text of the Apache version 2.0 license
 can be found in "/usr/share/common-licenses/Apache-2.0".

License: Expat
 Permission is hereby granted, free of charge, to any
 person obtaining a copy of this software and associated
 documentation files (the "Software"), to deal in the
 Software without restriction, including without
 limitation the rights to use, copy, modify, merge,
 publish, distribute, sublicense, and/or sell copies of
 the Software, and to permit persons to whom the Software
 is furnished to do so, subject to the following
 conditions:
 .
 The above copyright notice and this permission notice
 shall be included in all copies or substantial portions
 of the Software.
 .
 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
 ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
 TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
 PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
 SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
 IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 DEALINGS IN THE SOFTWARE.