v5.0.0

• Make the library fully robust by switching to robust-predicates for orientation checks. Now the library will produce valid output even on highly degenerate floating point input.
• ⚠️ Breaking: expose the library as ES Module by default with "type": "module", requiring Node v12+.
• ⚠️ Breaking: remove transpilation, dropping support for IE11 out of the box. Consumers will need to transpile the code on their own if necessary.