Merge branch 'Webgl-art---update-2' into 'pregmod-master'

.gitlab-ci.yml

js/003-data/gameVariableData.js

src/art/artJS.js

src/art/webgl/art.js

src/art/webgl/contents.txt

src/art/webgl/engine.js

src/art/webgl/ui.js

src/gui/options/options.js