Add {inode} and {filesize} to format template options.

[phiresky]

It can be very useful to output metadata in fd, just like you can in find:

$ find -printf '%s %p\n'
123 foo
456 bar

This adds the same option to fd:

$ fd --format '{size} {}'
123 foo
456 bar

stat() is only called if necessary (i.e. not for inode). This can easily be expanded to allow more metadata outputting, such as modified date, file type, permissions. Those would have an open question how to format them though, so this only adds two obvious ones.

An -l option already exists, but it requires an external tool, is inflexible and inefficient on large directories.