FUNCTION: LieTools/MkDominantWithSign
USAGE: MkDominantWithSign(fwgt,Gt); MkDominantWithSign(fwgt); 
       MkDominantWithSign(fwgt,Gtype,rnk);
SYNOPSIS: MkDominantWithSign(fwgt,Gt) will Weyl reflect a weight (expressed
  in terms of a basis of fundamental weights) until it is dominant. It returns 
  a two item list [dwgt,sgn] where dwgt is the dominant weight found and sgn is 
  the determinant of the Weyl group element taking fwgt to dwgt. When called with
  a single argument fwgt it is necessary to first initialize a global Lie algebra 
  environment (see LieTools[gSetup]).
EXAMPLE: 
> MkDominantWithSign([0,-1],G2);

                             [[0, 1], -1]

SEE ALSO: LieTools[MkDominant]
