Update input formats

[juanfung]

• Updated dependencies
• Preprocessing for multiple systems and stories + incorporates updated expected input format #20
• Updated pv_cost with updated naming conventions
• Updated loss calculations (displacement #18 , business income and value added #17, and rental income #18) and total loss (remove NA’s)
• Compute supply chain losses, if parameter given #9
• Explicit dependencies
• More explicit inputs and join columns
• Updated output format: nested stories within systems; returns list where each element of list is a dataframe with all stories for a given system
• Updated postprocessing and plotting code for more explicit inputs and proper column ordering for plotting