Implement the missing terms of power spectrum response

[RyoTerasawa]

I will implement the missing terms in the halo model power spectrum response to the long wavelength modes

CCL/pyccl/halos/pk_4pt.py

Line 324 in 265dd61

def halomod_Tk3D_SSC(

as pointed out in Eq. 20 in https://arxiv.org/pdf/2310.13330.pdf . These terms can be computed using the second order halo bias, that arises from the response of the linear halo bias.