Implemented extra_solar_ngc::neo_get_index_fast( ... );
Implemented extra_solar_ngc::neo_get_index_fast( ... );

Previousy this forwarded to the slow version.  Bisection
code copied from the Bright Star Catalog code.

matth036/dsc,matth036/dsc,matth036/dsc,matth036/dsc,matth036/dsc