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/EVerest-main/interfaces/example.yaml

@@ -0,0 +1,18 @@
+description: >-
+  This interface defines an example interface that uses multiple framework
+  features
+cmds:
+  uses_something:
+    description: This command checks if something is stored under a given key
+    arguments:
+      key:
+        description: Key to check the existence for
+        type: string
+        pattern: ^[A-Za-z0-9_.]+$
+    result:
+      description: Returns 'True' if something was stored for this key
+      type: boolean
+vars:
+  max_current:
+    description: Provides maximum current of this supply in ampere
+    type: number