Small work on iModel

[LivewireCB]

Just a bit of work on iModel, good amount of unknowns though.

[github-actions]

🆗 ✅

+204 bytes
🆗 Bot Rating: A fair and commendable contribution

No Regressions 🎉

Progress: 5

📈 main/SB/Core/gc/iModel - .text +203 bytes -> 2.76%
📈 main/SB/Core/gc/iModel - iModelUnload(RpAtomic*) +36 bytes -> 32.14%
📈 main/SB/Core/gc/iModel - GetChildFrameHierarchy(RwFrame*, void*) +80 bytes -> 80.00%
📈 main/SB/Core/gc/iModel - iModelFileNew(void*, unsigned int) +40 bytes -> 71.43%
📈 main/SB/Core/gc/iModel - GetHierarchy(RpAtomic*) +48 bytes -> 92.31%