perf(functions): Optimizations for join()

[donmccurdy]

Changes:

• BREAKING CHANGE: Removes 'overwrite' and 'skipIndices' options from transformMesh() and transformPrimitive() functions
• feat(functions): Exposes compactPrimitive as public API
• perf(functions): Improves join() and joinPrimitives() performance
• perf(functions): Improves transformMesh() transformPrimitive() performance

Related:

• Fixes https://github.com/donmccurdy/glTF-Transform/issues/1315
• https://github.com/donmccurdy/glTF-Transform/issues/1133

Benchmark:

join
v3.10.1             ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀     127.446ms
v4.0.0-alpha.12     ▀▀▀▀▀▀▀▀▀▀▀                                  33.6132ms
v4.0.0-alpha.13     ▀▀▀▀▀▀▀▀▀▀▀                                  36.136ms
v4.0.0-alpha.14     ▀▀▀▀▀▀▀▀▀▀▀▀                                 39.452ms
v4.0.0-alpha.15     ▀▀▀▀▀▀▀▀▀▀▀                                  33.7321ms
dev                 ▀▀▀▀▀▀                                       18.5413ms