Refactor testgrid and add detection of more diss types.
Refactor testgrid and add detection of more diss types.

craigsapp/humlib,craigsapp/humlib,humdrum-tools/minHumdrum,craigsapp/humlib,humdrum-tools/minHumdrum,craigsapp/minHumdrum,craigsapp/minHumdrum,craigsapp/minHumdrum,humdrum-tools/minHumdrum