Add Pretty Cost Printing

[GabrielKS]

Fixes #1048. Depends on NREL-Sienna/InfrastructureSystems.jl#377.

Here's how the new cost struct printouts look at their most complicated (printing some operational costs):

Next is to figure out a way of abbreviating this to stick it into the components printout.

[GabrielKS]

Okay, now components show more cost information than before but still a very abbreviated summary to more or less fit on one line:

[kdayday]

Is "(a type of InputOutputCurve)" necessary? We haven't focused on InputOutputCurve elsewhere in documentation, so I think it could be extraneous and confusing

Also, could shorten "composed of" to "with" or something, but otherwise, looks good

[GabrielKS]

Is "(a type of InputOutputCurve)" necessary? We haven't focused on InputOutputCurve elsewhere in documentation, so I think it could be extraneous and confusing

My thinking was we want to make it super clear when things are input-output curves versus incremental/marginal curves, etc., but I agree that using type names that aren't otherwise very exposed is confusing. Thoughts on another way to do this, or do you think it's already sufficiently clear that this is an input-output curve?