Add insights profiling tags to RemeshMeshOp and FRemesher. Small optimizations to FRemesher::ProcessEdge(), which has surprising overhead for no-ops (ie edge is not modified).
Add FUniqueIndexSet, alternative to a TSet for constructing list of unique indices (eg when finding set of one-ring tris of a list of vertices). Generally more efficient, particularly for large sets.
Improve FSubRegionRemesher. Make VertexROI private, provide accessors and update usage sites. Optimize InitializeFromVertexROI(), which is an expensive part of dynamic mesh sculpting. Make FullSmoothPass_Buffer() compute in parallel.
ModelingTools:
Major refactor of DynamicMeshSculptTool to improve performance (2-4x improvement on large brush sizes on 1m triangle mesh). A single FSubRegionRemesher is now created and maintained for entire brush stroke, rather than recreating every stamp. This avoids the high cost of initialzing full-mesh constraint set, and allows re-use of various allocated memory buffers. Reorganize major sub-steps computed in a single brush-stamp tick to allow Async computation where possible. Replace some ROI TSets with FUniqueIndexSet. Instrument for Insights, remove old cycle counting.
#rb none
#rnx
#jira none
[CL 15215321 by Ryan Schmidt in ue5-main branch]
