delete npm packages from root folder

node_modules/.package-lock.json

node_modules/colormap/.travis.yml

node_modules/colormap/README.md

node_modules/colormap/colorScale.js

node_modules/colormap/colormaps.png

node_modules/colormap/example.js

node_modules/colormap/index.js

node_modules/colormap/license.md

node_modules/colormap/night.jpg

node_modules/colormap/package.json

node_modules/colormap/res/draw.js

node_modules/colormap/res/res/CDOM.js

node_modules/colormap/res/res/PAR.js

node_modules/colormap/res/res/bathymetry.js

node_modules/colormap/res/res/chlorophyll.js

node_modules/colormap/res/res/cool.png

node_modules/colormap/res/res/density.js

node_modules/colormap/res/res/freesurface-blue.js

node_modules/colormap/res/res/freesurface-red.js

node_modules/colormap/res/res/inferno.js