Mbio: consider line fitting/ model building app

[d-callan]

From microbiomeComputations created by d-callan: VEuPathDB/microbiomeComputations#68

This was another thing i heard Dan mention recently that i thought was a cool idea that deserved at least a placeholder ticket. Again, if we go for it, there will be loads of tickets, mockups, etc.

My primary question here so far is how serious an app are we talking about? like are we talking about residual plots and derived variables, etc or more like just offering a scatter plot w some sort of line and a fitness metric?