[feature request] add files."name".path option.

[landure]

Please add a "path" option to "files", in order for:

  files."bin/composer-recipes-install-all" = {
    executable = true;
    text = builtins.readFile ../files/php/bin/composer-recipes-install-all.bash;
  };

to be written like:

  files."bin/composer-recipes-install-all" = {
    executable = true;
    path = ../files/php/bin/composer-recipes-install-all.bash;
  };

[domenkozar]

We could extend text to support paths