(ml5717) Refactored benchmarks to run in headless Chrome

.gitignore

.gitlab-ci.yml

__benchmarks__/benchmarks.html

__benchmarks__/benchmarks.js

__benchmarks__/data.js

__benchmarks__/puppeteer.js

package-lock.json

package.json

public/favicon.ico

src/connection/MockConnection.js

src/drawing-crdt

src/queue.js

src/wasm-crdt.js

webpack.bench.js