Add initial files and templates for ps_emailalerts module

- Created LICENSE file for composer dependencies.
- Added autoload files: autoload_classmap.php, autoload_namespaces.php, autoload_psr4.php, autoload_real.php, and autoload_static.php.
- Initialized installed.json for composer.
- Added index.php and form templates for admin configuration.
- Implemented front-end templates for email alerts, including account management and product notifications.
- Included necessary headers and copyright notices in all new files.

modules/ps_emailalerts/mails/sk/new_order.txt

@@ -0,0 +1,59 @@
+
+[{shop_url}] 
+
+Gratulujeme! 
+
+Nová objednávka bola vytvorená v obchode {shop_name}
+zákazníkom: {firstname} {lastname} ({email}) 
+
+OBJEDNÁVKA: {order_name} Vytvorená {date}
+
+PLATBA: {payment} 		 
+
+KÓD
+
+PRODUKT
+
+JEDNOTKOVÁ CENA
+
+MNOŽSTVO
+
+CELKOVÁ CENA
+
+{items} 
+
+PRODUKTY 
+
+{total_products} 
+
+ZĽAVY 
+
+{total_discounts} 
+
+DARČEKOVÉ BALENIE 
+
+{total_wrapping} 
+
+DORUČENIE 
+
+{total_shipping} 
+
+ZAPLATENÁ DAŇ 
+
+{total_tax_paid} 
+
+CELKOM ZAPLATENÉ 
+
+{total_paid} 
+
+{carrier} 
+
+{delivery_block_html} 
+
+{invoice_block_html} 
+
+{message} 
+
+{shop_name} [{shop_url}] powered by
+PrestaShop(tm) [http://www.prestashop.com/] 
+