Merge #38: Add LICENSE and LICENSE-MIT files

3488535 Add LICENSE and LICENSE-MIT files (Steve Myers)

Pull request description:

  This project is already [licensed MIT](https://choosealicense.com/licenses/mit/) per the `Cargo.toml` file. This PR makes that license more explicit by adding LICENSE and LICENSE-MIT files.

ACKs for top commit:
  danielabrozzoni:
    ACK 3488535 - thanks for taking care of this!

Tree-SHA512: fd2c36d8600f59237b0ca931276d67421d29d0542a95120329351c11051208648b67369151e5dba36634731bf13beaa0719b95ca44abad0e88918d0599b3c0c0

Author: danielabrozzoni

LICENSE

@@ -0,0 +1,11 @@
+This software is licensed under the [MIT](LICENSE-MIT) license.
+
+Some files retain their own copyright notice, however, for full authorship
+information, see version control history.
+
+Except as otherwise noted in individual files, all files in this repository are
+licensed under the MIT license <LICENSE-MIT or http://opensource.org/licenses/MIT>.
+
+You may not use, copy, modify, merge, publish, distribute, sublicense, and/or
+sell copies of this software or any files in this repository except in
+accordance this license.

LICENSE-MIT

@@ -0,0 +1,20 @@
+MIT License
+
+Copyright (c) 2022 rust-hwi developers
+
+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.