major refactor. Everything now either in a module or script. Tentative implementation of partial heatmap generation (1D at a time)
Merge branch 'master' of https://github.com/jeshuamaxey/darts
trialed new code, corrected incorrect y translation
Merge branch 'master' of https://github.com/jeshuamaxey/darts
Merge branch 'master' of https://github.com/jeshuamaxey/darts
Merge branch 'master' of https://github.com/jeshuamaxey/darts
fixed heatmap visualisation offset