Add initial project structure and configurations

- Set up project directories including app structure.
- Add IntelliJ IDEA project files and configurations.
- Implement basic PHP router for request handling.
- Provide reference files for features, IPs, and documentation.
- Include license and copyright files.

public/.htaccess

@@ -0,0 +1,11 @@
+RewriteEngine On
+
+# Riscrive la base dell'URL per le richieste
+RewriteBase /
+
+# Salta le regole di riscrittura se il file o la directory esistono realmente
+RewriteCond %{REQUEST_FILENAME} !-f
+RewriteCond %{REQUEST_FILENAME} !-d
+
+# Riscrive tutte le altre richieste a index.php
+RewriteRule ^(.*)$ index.php [QSA,L]