Allow module to provide resources and automatically expose them

packages/node_modules/@node-red/registry/lib/localfilesystem.js

@@ -262,6 +262,14 @@ function getModuleNodeFiles(module) {
         result.examples = {path:examplesDir};
     } catch(err) {
     }
+
+    var resourcesDir = path.join(moduleDir,"resources");
+    try {
+        fs.statSync(resourcesDir)
+        result.resources = {path:resourcesDir};
+    } catch(err) {
+    }
+
     return result;
 }
 
@@ -406,6 +414,7 @@ function convertModuleFileListToObject(moduleFiles,seedObject) {
             user: moduleFile.user||false,
             nodes: {},
             plugins: {},
+            resources: nodeModuleFiles.resources,
             icons: nodeModuleFiles.icons,
             examples: nodeModuleFiles.examples
         };