Reduce install size

[benmerckx]

Is your feature request related to a problem? Please describe.

Install size for lib0 seems to be around 2.2MB. What causes the bloat is inclusion of the compiled test suite:

• dist/test.js.map (428Kb)
• dist/test.cjs.map (423Kb)
• dist/test.js (220Kb)
• dist/test.cjs (204Kb)

Describe the solution you'd like

These files could be added to .npmignore or other means of excluding them.

[dmonad]

Thank you for the suggestion. I implemented your suggestion and it really made a difference.

This addition will be used in the next release.