Box size for contact cases

[pabloseleson]

It would be helpful to set up a warning before or during a simulation if the box size is too small. We noticed an issue in in the fragmenting cylinder example, when using:
"system_size" : {"value": [0.1, 0.1, 0.15], "unit": "m"},

[streeve]

The box must contain all particles at all steps - this wouldn't be an initial check, but throughout the simulation. If we ran that problem half as long the box size would be sufficient