v2.0.0

• Export one scene at a time so each graph is freed instead of accumulating in memory.
• Remove countRootObjects function as they are already counted later on.
• Create a nodeWorkarounds.ts file with installPolyfills and normalizePivot functions.
• Update tests based on these changes.
• During deduplication, keep a reference to the first occurrence of each object instead of parsing
• Deload Node.js call stack by turning recursive functions into iterative (which uses the heap).
• Implement dynamic transparency so inner layers are more opaque than outer ones.