Added Italian translation.

app/src/main/res/values-it/strings.xml

@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="app_name">Sunflower</string>
+    <string name="menu_filter_by_grow_zone">Filtra per zona di crescita</string>
+    <string name="plant_detail_image_content_description">Immagine della pianta</string>
+    <string name="my_garden_title">Il mio giardino</string>
+    <string name="plant_list_title">Lista delle piante</string>
+    <string name="plant_details_title">Dettagli della pianta</string>
+    <string name="menu_item_share_plant">Condividi</string>
+    <string name="planted_date">%1$s piantata il %2$s</string>
+    <string name="garden_empty">Il tuo giardino è vuoto</string>
+    <string name="added_plant_to_garden">Pianta aggiunta al giardino</string>
+    <string name="navigation_drawer_header_content_description">Logo dell\'intestazione di navigazione</string>
+    <string name="share_text_plant">Controlla la pianta %s nell\'app Sunflower</string>
+
+    <!-- String plurals and their related prefix / suffix strings -->
+    <string name="watering_needs_prefix" translation_description="Prefix for the text describing how often a plant should be watered. Used in combination with watering_needs_suffix.">Watering needs:</string>
+    <plurals name="watering_needs_suffix">
+        <item quantity="one" translation_description="Suffix for the text describing how often a plant should be watered, singular. Used in combination with watering_needs_prefix: 'Watering needs: every day'.">every day</item>
+        <item quantity="other" translation_description="Suffix for the text describing how often a plant should be watered, plural. Used in combination with watering_needs_prefix: 'Watering needs: every 8 days'.">every %d days</item>
+    </plurals>
+
+    <string name="watering_next_prefix" translation_description="Prefix for the text indicating when the plant should next be watered. Used in combination with watering_next_suffix.">Annaffiata il %s</string>
+    <plurals name="watering_next_suffix">
+        <item quantity="one" translation_description="Suffix for the text indicating when the the plant should next be watered, singular. Used in combination with watering_next_prefix: 'Last watered on May 24, 2018 - water tomorrow.'.">annaffia domani.</item>
+        <item quantity="other" translation_description="Suffix for the text indicating when the the plant should next be watered, plural. Used in combination with watering_next_prefix: 'Last watered on May 24, 2018 - water in 8 days.'.">annaffia in %d giorni.</item>
+    </plurals>
+
+    <!-- Accessibility -->
+    <string name="a11y_plant_item_image" translation_description="Accessibility text for each of the plant images shown in the 'My garden' and 'Plant list' screens.">Immagine della pianta</string>
+
+</resources>