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/diagrams/plan-phase.puml

@@ -0,0 +1,15 @@
+@startuml
+!theme cerulean
+
+participant AGR
+participant CRO
+participant DSO
+
+== Plan ==
+AGR -> CRO: Retrieve list congestion points incl. associated connections
+CRO <- DSO: Retrieve 'active' Aggregators for each congestion point
+AGR -> AGR: optimize portfolio
+AGR <- DSO: [optional] FlexReservationUpdate
+AGR -> AGR: optimize portfolio
+
+@enduml