Release 1.2.0

What's Changed

• Simple upgrade by @Woo-Tastic in #1
• implemented TreeNode.searchNode() and TreeUtil.createTreeByFlatList() by @Woo-Tastic in #2
• Modernize by @Woo-Tastic in #3

New Contributors

• @Woo-Tastic made their first contribution in #1

Full Changelog: https://github.com/datenkugel/treejs/commits/v1.2.0