Add extracted tools: CitrineOS, OpenOCPP, ShapeShifter

- CitrineOS core extracted (CSMS OCPP 2.0.1)
- OpenOCPP extracted (firmware OCPP 1.6J/2.0.1)
- ShapeShifter library installed (pip install -e)
- ShapeShifter specification extracted
- EVerest extracted

TODO updated with progress

tools/shapeshifter-specification-main/docs/message-descriptions/scope.md

@@ -0,0 +1,21 @@
+<!--
+SPDX-FileCopyrightText: 2020-2023 Contributors to the Shapeshifter project
+
+SPDX-License-Identifier: Apache-2.0
+-->
+
+# Scope
+
+USEF defines the content of XML messages between role processes, as required for implementation of USEF’s MCM.
+Each message has a unique recipient, identified by the Internet domain and USEF role of the participant.
+The message transfer mechanism is responsible for sending and receiving these messages.
+
+<figure markdown>
+  ![Relationship between the normative USEF XML messages (yellow pane) and the best-practice message transfer mechanism (light-blue pane).](../assets/images/image18.emf.odg.svg.png){ width=1000px }
+  <figcaption>Relationship between the normative USEF XML messages (yellow pane) and the best-practice message transfer mechanism (light-blue pane).</figcaption>
+</figure>
+
+When selecting a message transfer mechanism, local market conditions should be considered and the USEF privacy and security guidelines should be followed [^B5].
+Further recommendations about the message transport mechanism are given in [Message transport mechanism](../appendix/message-transport-mechanism.md).
+
+[^B5]: USEF Foundation, "USEF: The Privacy and Security Guideline," USEF Foundation, Arnhem, 2015. Available: [https://www.usef.energy/app/uploads/2016/12/USEF_PrivacySecurityGuideline_3nov15.pdf](https://www.usef.energy/app/uploads/2016/12/USEF_PrivacySecurityGuideline_3nov15.pdf)