Load xac and xsm with cpp #2174

Job	Run time
Code style, file formatting, and docs	18s
🏁 Windows Release	3m 40s
🏁 Windows Debug	4m 25s
🍎 macOS (universal) Release	1m 33s
🍎 macOS (universal) Debug	1m 31s
🐧 Linux Debug	1m 41s
🐧 Linux Release	1m 22s
Export	3m 10s
Perform Godot Debug Checks	1m 5s
📚 Merge Files	6s
	18m 51s

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