removed superfluous functions
renamed bmt_std_sampling_points to hcdc_sampling_points

HCDC stands for hyperbolically equidistant concentric dyadic cocircular.
That means the sampling points lay on hyperbolically equidistant concentric
circles in groups of powers of 2 (hence dyadic).
fixed references to bergman_R1
hcdc_sampling points no longer includes the first 0
implemented the 2-multiplicity-pole system