first step in unifying the examples: one example folder

One example folder for all examples, including std and embedded examples

examples/example-std/CHANGELOG.md

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+Change Log
+=======
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](http://keepachangelog.com/)
+and this project adheres to [Semantic Versioning](http://semver.org/).
+
+# [unreleased]
+
+# [v0.1.1] 2024-02-21
+
+satrs v0.2.0-rc.0
+satrs-mib v0.1.1
+
+# [v0.1.0] 2024-02-13
+
+satrs v0.1.1
+satrs-mib v0.1.0