add NOTICE and CONTRIBUTING files (#93)

Signed-off-by: Lukas Jungmann <lukas.jungmann@oracle.com>

CONTRIBUTING.md

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+# Contributing to Eclipse Project for JSON Processing
+
+Thanks for your interest in this project.
+
+## Project description
+
+Eclipse Project for JSON-P is a Java API to process (e.g. parse, generate,
+transform and query) JSON documents. It produces and consumes JSON in a
+streaming fashion (similar to StAX API for XML) and allows to build a Java
+object model for JSON using API classes (similar to DOM API for XML).
+
+* https://projects.eclipse.org/projects/ee4j.jsonp
+
+## Developer resources
+
+Information regarding source code management, builds, coding standards, and
+more.
+
+* https://projects.eclipse.org/projects/ee4j.jsonp/developer
+
+The project maintains the following source code repositories
+
+* https://github.com/eclipse-ee4j/jsonp
+
+## Eclipse Contributor Agreement
+
+Before your contribution can be accepted by the project team contributors must
+electronically sign the Eclipse Contributor Agreement (ECA).
+
+* http://www.eclipse.org/legal/ECA.php
+
+Commits that are provided by non-committers must have a Signed-off-by field in
+the footer indicating that the author is aware of the terms by which the
+contribution has been provided to the project. The non-committer must
+additionally have an Eclipse Foundation account and must have a signed Eclipse
+Contributor Agreement (ECA) on file.
+
+For more information, please see the Eclipse Committer Handbook:
+https://www.eclipse.org/projects/handbook/#resources-commit
+
+## Contact
+
+Contact the project developers via the project's "dev" list.
+
+* https://dev.eclipse.org/mailman/listinfo/jsonp-dev

NOTICE.md

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+# Notices for Eclipse Project for JSON Processing
+
+This content is produced and maintained by the Eclipse Project for JSON
+Processing project.
+
+* Project home: https://projects.eclipse.org/projects/ee4j.jsonp
+
+## Trademarks
+
+Eclipse Project for JSON Processing is a trademark of the Eclipse Foundation.
+
+## Copyright
+
+All content is the property of the respective authors or their employers. For
+more information regarding authorship of content, please consult the listed
+source code repository logs.
+
+## Declared Project Licenses
+
+This program and the accompanying materials are made available under the terms
+of the Eclipse Public License v. 2.0 which is available at
+http://www.eclipse.org/legal/epl-2.0. This Source Code may also be made
+available under the following Secondary Licenses when the conditions for such
+availability set forth in the Eclipse Public License v. 2.0 are satisfied: GNU
+General Public License, version 2 with the GNU Classpath Exception which is
+available at https://www.gnu.org/software/classpath/license.html.
+
+SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
+
+## Source Code
+
+The project maintains the following source code repositories:
+
+* https://github.com/eclipse-ee4j/jsonp
+
+## Third-party Content
+
+JUnit (4.12)
+
+* License: Eclipse Public License
+
+## Cryptography
+
+Content may contain encryption software. The country in which you are currently
+may have restrictions on the import, possession, and use, and/or re-export to
+another country, of encryption software. BEFORE using any encryption software,
+please check the country's laws, regulations and policies concerning the import,
+possession, or use, and re-export of encryption software, to see if this is
+permitted.