Add pmoradiofrance module and improve track duration handling

This commit adds the pmoradiofrance module to the build, updates the version to 0.3.14, and enhances the music renderer to fetch track duration from DIDL metadata when the renderer doesn't provide it directly. It also improves metadata caching for Radio France, including dynamic duration calculation and better station name handling.

Dockerfile

@@ -50,6 +50,7 @@ COPY pmoaudiocache/ ./pmoaudiocache/
 COPY pmoaudio/ ./pmoaudio/
 COPY pmoqobuz/ ./pmoqobuz/
 COPY pmoparadise/ ./pmoparadise/
+COPY pmoradiofrance/ ./pmoradiofrance/
 COPY pmosource/ ./pmosource/
 COPY pmoplaylist/ ./pmoplaylist/
 COPY pmoflac/ ./pmoflac/