Add service icons to Telegram bot (#113357)

homeassistant/components/telegram_bot/icons.json

@@ -0,0 +1,18 @@
+{
+  "services": {
+    "send_message": "mdi:send",
+    "send_photo": "mdi:camera",
+    "send_sticker": "mdi:sticker",
+    "send_animation": "mdi:animation",
+    "send_video": "mdi:video",
+    "send_voice": "mdi:microphone",
+    "send_document": "mdi:file-document",
+    "send_location": "mdi:map-marker",
+    "send_poll": "mdi:poll",
+    "edit_message": "mdi:pencil",
+    "edit_caption": "mdi:pencil",
+    "edit_replymarkup": "mdi:pencil",
+    "answer_callback_query": "mdi:check",
+    "delete_message": "mdi:delete"
+  }
+}