extract an agents module, slightly refactor parallant_tiled:partition/1

move partition/1 to newly created module and apply partition/3 in sequential model too
Move apply_move/3 function to the new ants module
move create_ants/3 to the new module
remove export_all, separate coloured tiles
Merge pull request #3 from ParaPhraseAGH/extract_behaviours

Extract behaviours