docs: add legal notices

Signed-off-by: Alex T <alext.mkrs@gmail.com>

NOTICE.md

@@ -0,0 +1,29 @@
+# Notices for Eclipse MRAA
+
+This content is produced and maintained by the Eclipse MRAA project.
+
+* Project home: https://projects.eclipse.org/projects/iot.mraa
+
+## Trademarks
+
+Eclipse MRAA 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 MIT license which is available at
+https://projects.eclipse.org/license/mit-license-mit.
+
+SPDX-License-Identifier: MIT
+
+## Source Code
+
+The project maintains the following source code repositories:
+
+* https://github.com/eclipse/mraa