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/citrineos-core-main/apps/operator-ui/postcss.config.mjs

@@ -0,0 +1,11 @@
+// SPDX-FileCopyrightText: 2025 Contributors to the CitrineOS Project
+//
+// SPDX-License-Identifier: Apache-2.0
+
+const config = {
+  plugins: {
+    '@tailwindcss/postcss': {},
+  },
+};
+
+export default config;