A set of T. Schelling segregation models

The Schelling Seggregation models:
- Schelling1971-discrete
- Schelling1978

The original model is a 1d line with continuous space. It is implemented in a
1d discrete version and a 1d continous version.

The 1978 model is a discrete 2d model with a Moore Neighbourhood.

Schelling, Thomas C. (1971): Dynamic models of segregation.
In The Journal of Mathematical Sociology 1 (2), pp.143186.
DOI: 10.1080/0022250X.1971.9989794.

Schelling, Thomas C. (1978): Micromotives and macrobehavior.
1st. New York: Norton.
