Yaml Model Repository: skip non-existent paths during the initial scan instead of logging a warning

Signed-off-by: Jimmy Tanagra <jcode@tanagra.id.au>

Author: jimtng

bundles/org.openhab.core.model.yaml/src/main/java/org/openhab/core/model/yaml/internal/YamlModelRepositoryImpl.java

@@ -130,6 +130,9 @@ public YamlModelRepositoryImpl(@Reference(target = WatchService.CONFIG_WATCHER_F
         // read initial contents
         WATCHED_PATHS.forEach(watchPath -> {
             Path fullPath = mainWatchPath.resolve(watchPath);
+            if (!Files.exists(fullPath) || !Files.isDirectory(fullPath)) {
+                return;
+            }
             try {
                 Files.walkFileTree(fullPath, new SimpleFileVisitor<>() {
                     @Override