Translate: Add method to set language in standalone app context

i2psnark:
- add form to set language in standalone context
- add Ukrainian and Japanese translations

apps/i2psnark/java/build.xml

@@ -211,6 +211,9 @@
         <zipfileset src="../../ministreaming/java/build/mstreaming.jar" />
         <zipfileset src="../../streaming/java/build/streaming.jar" />
         <zipfileset src="../../systray/java/build/systray.jar" />
+        <!-- Countries translations. The i2psnark translations are in the war but it's easier to put these here -->
+        <!-- 300KB just to translate "Brazil", but why not... -->
+        <fileset dir="../../routerconsole/java/build/obj" includes="net/i2p/router/countries/*.class" />
         <manifest>
             <attribute name="Main-Class" value="org.klomp.snark.standalone.RunStandalone"/>
             <attribute name="Implementation-Version" value="${full.version}" />