Release version 1.0.1

- Add Twig template engine integration
- Migrate all templates to Twig format
- Add German (Switzerland, Informal) translation
- Improve template organization and security
- Add Composer dependency management
- Create comprehensive changelog

templates/frontend/pricing-table.twig

@@ -0,0 +1,17 @@
+{#
+ # Frontend Pricing Table Template
+ #
+ # @package WC_Tier_Package_Prices
+ # @var object product
+ # @var array tiers
+ # @var array packages
+ #}
+<div class="wc-tpp-pricing-container">
+    {% if tiers is not empty and get_option('wc_tpp_enable_tier_pricing') == 'yes' %}
+        {% include 'frontend/tier-pricing-table.twig' with {'product': product, 'tiers': tiers} %}
+    {% endif %}
+
+    {% if packages is not empty and get_option('wc_tpp_enable_package_pricing') == 'yes' %}
+        {% include 'frontend/package-pricing-display.twig' with {'packages': packages} %}
+    {% endif %}
+</div>