[PATCH] strings: new command

[Sam Ravnborg]

> I was in a situation where I missed "strings".
> So here it is....
> I started out with cat.c - but ended up re-writing everything.
> 
> It has seen light testing on my x86 box.
> Ran it through checkpatch for good measure - fixed a few things.
> 
> The location in Makefile seems random, so I just put it next to cat.
> 
> Before applying please consider if strings is really
> general useful in barebox.

In the end I had no use for strings in barebox, so another reason
to consider if it is really needed.

	Sam