[Enh] Include synthetic data from ecological model

[JusteRaimbault]

so the field of application of the library is not only territorial systems

[JusteRaimbault]

see e.g. landscape generators in
Langhammer, M., Thober, J., Lange, M., Frank, K., & Grimm, V. (2019). Agricultural landscape generators for simulation models: A review of existing solutions and an outline of future directions. Ecological modelling, 393, 135-151.