Add CLI tools, network configuration script, and project documentation

This commit introduces:
- A versatile CLI script with multiple utility functions
- A network configuration shell script for interface setup
- A README.md with basic project information
- Additional configuration files for development environment

.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+  "cSpell.words": ["Haserl"]
+}