SPLITFV Splits faces and vertices into connected pieces
FVOUT = SPLITFV(F,V) separates disconnected pieces inside a patch defined by faces (F) and
vertices (V). FVOUT is a structure array with fields "faces" and "vertices". Each element of
this array indicates a separately connected patch.
FVOUT = SPLITFV(FV) takes in FV as a structure with fields "faces" and "vertices"
Note: faces and vertices should be defined such that faces sharing a coincident vertex reference
the same vertex number, rather than having a separate vertice defined for each face (yet at the
same vertex location). In other words, running the following command: size(unique(v,'rows') ==
size(v) should return TRUE. An explicit test for this has not been included in this function so
as to allow for the deliberate splitting of a mesh at a given location by simply duplicating
those vertices.