introduce asynchronous data retrieval

The client now offers getTripsAsync(), getStopsAsync() and
getMessagesAsync() that return a Future of the requested objects. The
synchronous methods are still present, but only wrap the new ones
internally.

Author: stklcode

CHANGELOG.md

@@ -1,6 +1,12 @@
 # Changelog
 All notable changes to this project will be documented in this file.
 
+## unreleased
+
+### Features
+* New methods for asynchronous trip, stop and message retrieval (#15)
+
+
 ## 2.0.8 - 2024-10-03
 
 ### Fixed

pom.xml

@@ -6,7 +6,7 @@
 
     <groupId>de.stklcode.pubtrans</groupId>
     <artifactId>juraclient</artifactId>
-    <version>2.0.8</version>
+    <version>2.1.0-SNAPSHOT</version>
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>