Human filesize in cli put with -h option

As requested by @brycollins, the output of the put command should be human readable.  It is now if you use the -h option.

```sh
$ doss put -h ~/Desktop/files/*
ID	Filename	Size
1	/Users/hrowland/Desktop/files/IMG_1579.JPG	452.1 KB
2	/Users/hrowland/Desktop/files/flame robin.jpg	24.1 KB
3	/Users/hrowland/Desktop/files/mrc-dragon.pdf	31.5 KB
4	/Users/hrowland/Desktop/files/nla-1.jpeg	94.3 KB
```