Simcurve simulations now no longer need to be saved as fits files.

This saves a lot of disk I/O time during MCMC stuff.
The input pardict no longer gets overwritten in MCtrane

I don't understand why deepcopy was needed, but w/e
MCtrane now saves plots of the pdfs of "fitted" variables
Finally updated MCtrane to handle multiple heights
Fixed(?) Numba import handling in ADEUtils
Added more header values to simcurve output
Fixed skip_radii implementation in dd.open_drunk
Some more skip_radii changes
Now we only load the drunk data once. Much faster.
Put a fixed value in for px center of galaxy
Now no NaN's are allowed for moment values.

If detected, that entire radius is deleted. This fixes an issue that was
causing MCMC to not work.