http-fstree downloads a json file and converts to service outputs

pkgs/default.nix

@@ -62,6 +62,7 @@ in {
   gen_init_cpio = callPackage ./gen_init_cpio { };
   go-l2tp = callPackage ./go-l2tp { };
   hi = callPackage ./hi { };
+  http-fstree = callPackage ./http-fstree { };
   ifwait = callPackage ./ifwait { };
   initramfs-peek = callPackage ./initramfs-peek { };
   kernel-backport = callPackage ./kernel-backport { };