Compute the radial profile Dens*Ye and compute Pres from radial profiles.

[Inhyeok-Song]

It does more make sense that we compute the radial profile Dens*Ye and compute Pres from radial profiles
rather than directly compute Pres.

There are two versions about this issue, and it is better to combine those two.

ccsn_grep_corr_v1 : discard bins containing unphysical values
ccsn_grep_corr_v2 : compute the radial profile of Ye * Dens first, and compute pressure from the radial profiles