Proposed affiliated package: martini

[Kyle Oman]

Martini is a modular package for the creation of synthetic resolved HI line observations (data cubes) of smoothed-particle hydrodynamics simulations of galaxies. I make extensive use of astropy.units, astropy.coordinates and astropy.fits, plus some other bits and bobs. I've just completed a comprehensive overhaul to a v2.0 with CI, docs, etc. so it seems like a good time to request a review and perhaps for martini to become an affiliated package.

PR is here.