Wrote (generate-biomes) and associated functions

Changed some item definitions and other small changes.

Revamped biomes

Worked on world map creation

Refactored to use the new-* macros

Started on items.lisp

Started on animals.lisp

Started on biome.lisp

Slimmed down util.lisp

Removed old landscape generation code.

Small changes to diamond.lisp, new landscapes generated.

Implemented diamond algorithm

Moved output to worlds folder

Added comments and minor adjustments

Finetuned landscape variables, some bug fixes

Added R map visualization script.

Wrote (create-peak), fixed some bugs

Finished (create-stream)

Wrote first version of (create-stream)

Wrote more direction utility functions

Wrote direction utility functions

Wrote (save-topography)

Added license and imported util.lisp

First commit, world matrix is created.