config parser

[FiberedSkies]

This would be a really good ease of use feature to add. if we can parse a .toml or .ini configuration file for all the hyperparameters of the simulation set up, then the actual interface would be much much easier to use overall. It would also be good to probably adjust the World::create() call to output a World struct with fixed clock sizing read from the configuration as well, avoiding the messy generics.