Inq1720 metadata

@jon4than … I’ve been asked to go ahead and merge the Inq. 1720 stuff (trying to propagate the metadata map through IDV formulas) into the master branch so that we find out if users run into any trouble with it.

Other than all the ugly "Merge remote-tracking branch" commits, I believe it should be as simple as merging the inq1720_metadata branch into master, but want to let you take a look first… feel free to merge this if you think it’s OK.

Thanks!