Update readme
Input fields for live update
Add inputs to change space canvas dimensions
Refactor

Extract sun and planet reset to own class
Extract G input class from universe to main
Rename Runner to RunsSimulation
Refactor PlayButton out of RunsSimulation and rename to SimulatorControls
Rename toInt to toNumber and use parseFloat instead of parseInt

I was unintentionally truncating any values I would get from input fields
Add labels displaying current net force, fps, dt AND fix that stupid force bug