add (1) static SUPG Navier-Stokes equations set type and (2) Field_ParameterSetGetLocalElement

(1) Static Streamline Upwind Petrov-Galerkin (SUPG) weighted formulation for Navier-Stokes. Note that this still uses the Static Navier-Stokes problem subtype as the point of difference is only in the equation sets

(2) Field_ParameterSetGetLocalElement allows updating by local element number- in this commit only set up for DP data but will be generalised to others (e.g. SP, L)
add data types for Field_ParameterSetGetLocalElement
clean up some of the N-S SUPG routines following localElementGet bugfix