BandLimitedWaveform step_table conflict and compiler note

[rolfdegen]

Hallo Tsynth :)

Looks like the linker is failing with lots of duplicate symbols.

For example step_table: You have defined in data_bandlimit_step.c.

But you are also using Audio librar and bringing in that same symbol, in it's data_bandlimit_step.c I have renamed the table to data_bandlimit_step.c now.