Copyright for ppxlib source package in Huanghe V3.0

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/

Files: *
Copyright: © 2018 Jane Street Group, LLC
License: MIT

Files: ast/ast.ml ast/pprintast.ml*
Copyright: © 1996-2007 Institut National de Recherche en Informatique et en Automatique
License: LGPL-2.1-with-linking-exception

Files: debian/*
Copyright: © 2019 Stéphane Glondu
License: MIT

License: MIT
 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.

License: LGPL-2.1-with-linking-exception
 In the following, "the OCaml Core System" refers to all files marked
 "Copyright INRIA" in this distribution.
 .
 The OCaml Core System is distributed under the terms of the
 GNU Lesser General Public License (LGPL) version 2.1 (found in
 /usr/share/common-licenses/LGPL-2.1 on Debian systems).
 .
 As a special exception to the GNU Lesser General Public License, you
 may link, statically or dynamically, a "work that uses the OCaml Core
 System" with a publicly distributed version of the OCaml Core System
 to produce an executable file containing portions of the OCaml Core
 System, and distribute that executable file under terms of your
 choice, without any of the additional requirements listed in clause 6
 of the GNU Lesser General Public License.  By "a publicly distributed
 version of the OCaml Core System", we mean either the unmodified OCaml
 Core System as distributed by INRIA, or a modified version of the
 OCaml Core System that is distributed under the conditions defined in
 clause 2 of the GNU Lesser General Public License.  This exception
 does not however invalidate any other reasons why the executable file
 might be covered by the GNU Lesser General Public License.