Created a first configuration file

src/parameters.toml

+### Persephone - a socio-economic-ecological model of European agricultural landscapes.
+###
+### This is the default configuration file for Persephone, containing all model parameters.
+### The syntax is described here: https://toml.io/en/
+###
+### DO NOT MODIFY THIS FILE FOR SIMULATION EXPERIMENTS!
+### Instead, copy it to another directory and modify the copy.
+
+[core]
+configfile = "src/parameters.toml" # location of the configuration file
+mapfile = "data/region_jena.tif" # location of the map file
+outdir = "results" # location and name of the output folder
+logfile = "simulation.log" # name of the log file
+loglevel = "debug" # verbosity level: "debug", "normal", "errors"
+quietmode = false # if true, only print log statements to file, not the screen
+runtime = 10 # duration in days that the simulation will run for
+seed = 0 # seed value for the RNG (0 -> random value)
+
+[farm]
+
+
+[ecology]
+targetspecies = [] # list of target species to simulate
+
+[crop]
+cropmodel = "linear" # crop growth model to use, "linear" or "aquacrop" (not yet implemented)
+