colormanager: implement default config

app/render/backend/audiorenderbackend.cpp

@@ -111,7 +111,7 @@ QString AudioRenderBackend::CachePathName() const
 {
   QString cache_fn = cache_id();
   cache_fn.append(".pcm");
-  return QDir(GetMediaCacheLocation()).filePath(cache_fn);
+  return QDir(FileFunctions::GetMediaCacheLocation()).filePath(cache_fn);
 }
 
 bool AudioRenderBackend::CanRender()

app/render/backend/videorenderframecache.cpp

@@ -152,7 +152,7 @@ QString VideoRenderFrameCache::CachePathName(const QByteArray& hash, const Pixel
     ext = QStringLiteral("exr");
   }
 
-  QDir cache_dir(QDir(GetMediaCacheLocation()).filePath(QString(hash.left(1).toHex())));
+  QDir cache_dir(QDir(FileFunctions::GetMediaCacheLocation()).filePath(QString(hash.left(1).toHex())));
   cache_dir.mkpath(".");
 
   QString filename = QStringLiteral("%1.%2").arg(QString(hash.mid(1).toHex()), ext);