Icons, -X./., & auto-configure

Add new behavior to not honor .lc files while recursing unless -X arg ends with either "//" or "/.". In the former parents are searched, the latter not. Note that due to structure of the recursion if a top-level entry point has a .lc in "/." mode then those config mods are inherited through its recursion.

Add vector of "icons" (any utf8 strings really) capability.

Use new self-configuring cligen/[statx, magic]