Firedrake Navier-Stokes: add weak scaling support
Firedrake Navier-Stokes: enable COFFEE padding
Wave: processor -> core
Navier-Stokes: update mesh sizes and cell/vertex counts
Wave: pass in scale with -m
Navier-Stokes: more mesh sizes and cell/vertex counts
Navier-Stokes: use parser, add sequential/strong/weak plot
Firedrake Navier-Stokes: add cell/vertex counts to metadata
Navier-Stokes: adapt default scales in Makefile