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/modules/Misc/System/signed_firmware_downloader.sh

@@ -0,0 +1,30 @@
+#!/bin/bash
+
+. "${1}"
+
+SIGNATURE_VALIDATION_DIR=$(mktemp -d /tmp/signature_validation_XXXXX)
+sleep 2
+echo "$DOWNLOADING"
+
+sleep 2
+curl --progress-bar --ssl --connect-timeout "$CONNECTION_TIMEOUT" "${2}" -o "${3}"
+curl_exit_code=$?
+sleep 2
+if [[ $curl_exit_code -eq 0 ]]; then
+    echo "$DOWNLOADED"
+    echo -e "${4}" >"$SIGNATURE_VALIDATION_DIR/firmware_signature.base64"
+    echo -e "${5}" >"$SIGNATURE_VALIDATION_DIR/firmware_cert.pem"
+    openssl x509 -pubkey -noout -in "$SIGNATURE_VALIDATION_DIR/firmware_cert.pem" >"$SIGNATURE_VALIDATION_DIR/pubkey.pem"
+    openssl base64 -d -in "$SIGNATURE_VALIDATION_DIR/firmware_signature.base64" -out "$SIGNATURE_VALIDATION_DIR/firmware_signature.sha256"
+    r=$(openssl dgst -sha256 -verify "$SIGNATURE_VALIDATION_DIR/pubkey.pem" -signature "$SIGNATURE_VALIDATION_DIR/firmware_signature.sha256" "${3}")
+
+    if [ "$r" = "Verified OK" ]; then
+        echo "$SIGNATURE_VERIFIED"
+    else
+        echo "$INVALID_SIGNATURE"
+    fi
+else
+    echo "$DOWNLOAD_FAILED"
+fi
+
+rm -rf "$SIGNATURE_VALIDATION_DIR"