BandLimitedWaveform step_table conflict and compiler note

[Rolf Degen]

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.