port over better k space fitter from MOF

[esheldon]

[beckermr]

Is this a v2 item?

[esheldon]

the MOF code is gmix v1 so we can't do it right now. But might be good to do after v2 is out

[beckermr]

We probably need to port fitvd/shredder to v2 BTW.

[esheldon]

yes; there is no hurry for that, we won't need to run that code again until its needed for the deep field work

[beckermr]

Unless we run it in mdet I suppose.