[Osi] Solving master problems using interior point method

[Lou Hafer]

Matt, Jonas,

> OSI folks - if I want to invoke an interior solver of Cpx or Clp, for
> example, how do I do it?

	As far as I'm aware, the answer is `not possible from the Osi API', 
unless you change the code. At which point adding something like a useInterior 
hint would probably be the way to go. An alternative is to hook 
[get,set]ApplicationData or [get,set]AuxilliaryInfo.
	
							Lou