Create new data structure for outputting to json data

[theovoss]

Unknowns only have 1 data point, so I want the user to be able to say make all unknowns be an x hour duration.

Current data structure is how full the lot is over the course of a day.

So the data in the json needs to say which data point it was (entry or exit) instead of just how full the lot is.

@keekeejeejee, the current data is just the static, 'how many spots are filled in the lot at a given day'. I'd say start playing with that and see what format you want the unknown data in.

[theovoss]

I'm thinking the new data structure will just be arrays of entrytime and exittime pairs.