inputParser improvements

[Laurent Hoeltgen]

Hi,

back in March 
(http://lists.gnu.org/archive/html/help-octave/2015-03/msg00060.html) I was 
asking about inputParser class in octave 
and the addParameter method that Matlab introduced. Last weekend I started 
implementing the addParameter method as well as the PartialMatching property 
that comes with it. 

Now my questions:

Is there interest for the code, and if yes, where and in what format should I 
send it? 

So far I've added three tests to the inputParser.m file. They cover the 
addParameter method, a working partial matching and a non-working partial 
matching due to ambiguity. Is this enough or should I add more?

Regards,
Laurent