Add new functions Inside

Bool_t TMath::IsInside(Double_t xp, Double_t yp, Int_t np, Double_t *x, Double_t *y)
   // Function which returns kTRUE if point xp,yp lies inside the
   // polygon defined by the np points in arrays x and y, kFALSE otherwise
Bool_t TMath::IsInside(Float_t xp, Float_t yp, Int_t np, Float_t *x, Float_t *y)
Bool_t TMath::IsInside(Int_t xp, Int_t yp, Int_t np, Int_t *x, Int_t *y)


git-svn-id: http://root.cern.ch/svn/root/trunk@5412 27541ba8-7e3a-0410-8455-c3a389f83636