Fast multipole methods for the Helmholtz equation

Modules
	Wideband 2D Helmholtz FMM
	High frequency 3D Helmholtz FMM

Files
file	helmholtz_burton_miller_solver.hpp
	A generic Burton-Miller FMBEM solver for the Helmholtz equation.
file	helmholtz_field_point.hpp
	Generic implementation of Helmholtz field point computations.

Detailed Description