Create branch to refactor updates to ui/services to support multiple metrics/plotting

A number of changes to the existing UI and the underlying Bottle web services were made over the last several months to improve support for different plotting mechanisms. These changes are extremely valuable to the system as a whole, but at the moment they exist in a siloed implementation that makes it difficult for a user to select individual metrics/plotting options. This branch represents a space for organizing the changes to be more modular and to better leverage the OCW APIs