[RFC] Add ARI directory to gdb sources

[Joel Brobecker]

> Pierre showed up in IRC and mentioned that someone suggested
> `gdb/contrib'.  I could not find the thread/message, but I support this
> idea FWIW.  `gdb/contrib/ari' would be good, then.
> 
> My rationale is that ARI is not part of GDB as a program nor distributed
> with it, so creating `gdb/ari' would perhaps confuse people because
> there are other directories there like `gdb/mi' or `gdb/cli'.

That was Doug Evans.

I have no issues with contrib/ari, and I kind of like it better too.
I do feel the need to correct that the new scripts will be part of GDB,
and thus will be distributed with it as well.

-- 
Joel