TXTwoPointFourier ell_min and ell_max default options not compatible with nside 32

[carlosggarcia]

I noticed that changing nside = 512 to nside=32 in examples/config/laptop_config.yml would make TXTwoPointFourier crash because it goes, by default, from ell_min = 100 to ell_max = 1500 (so too high for nside = 32).

TXPipe/txpipe/twopoint_fourier.py

Lines 65 to 66 in 0d902e6

	"ell_min": 100,
	"ell_max": 1500,

Wouldn't it be better to use ell_min=1 (I tried with 0 but geomspace complains) and ell_max=3*nside - 1 by default?

I want to use nside = 32 in my tests because that way the Cells and covariance are computed much much faster.

[damonge]

One related potential worry: if the NmtBins are being created with this ell_max, rather than going all the way to 3*nside-1, some of the power spectra (especially those involving shear) can suffer from significant edge effects.