feat: added TelegramParser interface and impl

src/main/java/de/swingbe/ifleet/TelegramParser.java

@@ -0,0 +1,17 @@
+package de.swingbe.ifleet;
+
+import de.swingbe.ifleet.model.Entity;
+
+/**
+ * Parses an {@link de.swingbe.ifleet.model.Entity}.
+ */
+public interface TelegramParser {
+
+    /**
+     * Returns a new {@link Entity} that holds the parses telegram.
+     *
+     * @param input the {@link String} to be parsed
+     * @return the parsed {@link Entity}
+     */
+    Entity parse(String input);
+}

src/main/java/de/swingbe/ifleet/TelegramParserImpl.java

@@ -0,0 +1,20 @@
+package de.swingbe.ifleet;
+
+import de.swingbe.ifleet.model.Entity;
+
+import static de.swingbe.ifleet.model.EntityParser.parseLogEntry;
+
+/**
+ * Parse telegram.
+ *
+ * Note that this class is package-private, so that the client can not use it.
+ */
+class TelegramParserImpl implements TelegramParser {
+    TelegramParserImpl() {
+    }
+
+    @Override
+    public Entity parse(String input) {
+        return parseLogEntry(input);
+    }
+}