support pipes for basic commands with a workaround

[amtoine]

from amtoine/dotfiles#31

i would like to add the following kind of script to the nushell config:

# rm trough pipe
#
# Example
# ls *.txt | first 5 | pipe rm
export def "pipe rm" [] {
  if not ($in | is-empty) {
    get name 
    | ansi strip
    | par-each {|file| 
        rm -rf $file
      } 
    | flatten
  }
}