Add pybench as a submodule
Convert Poisson benchmarks to use pybench
Factor common Poisson parameters into shared module
Update pybench
Specify plot style for Poisson benchmarks
Don't reorder mesh in DOLFIN Poisson benchmark
Use same solver parameters in Poisson benchmarks
Add comparison of Firedrake/DOLFIN Poisson benchmarks
Specify parameters for profile graph
Update pybench
Add default for size of Poisson benchmarks
Use pybench main function in Poisson benchmarks