surge-biquad 0.2.12-alpha.0

biquad filters from the surge synthesizer
use crate::imports::*;

x!{coeff}
x!{coeff_apf}
x!{coeff_bp}
x!{coeff_hp}
x!{coeff_lp}
x!{coeff_lp2b}
x!{coeff_lph}
x!{coeff_notch}
x!{coeff_peak_eq}
x!{coeff_pka}

x!{test_coeff_hp}
x!{test_coeff_bp}
x!{test_coeff_lp}
x!{test_coeff_apf}
x!{test_coeff}
x!{test_coeff_lph}
x!{test_coeff_lp2b}