fix netfs issues - implement fs.attributes

sys/modules/opus/fs/ramfs.lua

@@ -9,15 +9,28 @@ function ramfs.mount(_, nodeType)
 		return {
 			nodes = { },
 			size = 0,
+			created = os.epoch('utc'),
+			modification = os.epoch('utc'),
 		}
 	elseif nodeType == 'file' then
 		return {
 			size = 0,
+			created = os.epoch('utc'),
+			modification = os.epoch('utc'),
 		}
 	end
 	error('ramfs syntax: [directory, file]')
 end
 
+function ramfs.attributes(node)
+	return {
+		created = node.created,
+		isDir = not not node.nodes,
+		modification = node.modification,
+		size = node.size,
+	}
+end
+
 function ramfs.delete(node, dir)
 	if node.mountPoint == dir then
 		fs.unmount(node.mountPoint)