Add the lastModificationTimeMs into Inode

Add the lastModificationTimeMs into Inode. Update the Inode, InodeFile, InodeFolder.
In order to see the modification time on WebUI, update the WebUI.
When create, delete or rename a file or folder, the parent's modification time will change. When write to a file, the file's modification time and the parent's modification time will change, which is like the Linux file system.