* Renamed TemperatureNode --> CompositeThermometerNode
* Use moleculeType property instead of atomsProperty to identify the molecule type
* View layout changes to conform to the mock
* Adding a gradient to the barometer connector
Used moleculeType property instead of atoms property.
Replaced magic numbers with constants.
Added bottom support for the bicycle pump. Fixed gradients for the hose and connector.
* Fixed the shape at the top of the particle container node.
* Adjusted the position of barometer
* Update the sim title
Refactored the code to move the updatePhaseDiagram into the main view from the control panel
* Replaced instance property with a var
* Use moleculeType instead of atoms property
* Added a drag handler for the line in interaction potential diagram