Detect Apple M5 Pro / Max (Sotra) super and performance cores

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Add microarchitecture detection for Apple M5 Pro and M5 Max (Sotra SoC / CPUFAMILY_ARM_SOTRA).

• Add cpuinfo_uarch_sotra_super and cpuinfo_uarch_sotra_performance enums.
• Detect 15-core (5 Super + 10 Performance) and 18-core (6 Super + 12 Performance) configurations on macOS/XNU.
• Make displayed Apple uarch names consistently use space, not underscore.
• Tested tools/cpu-info.c on 14" MacBook Pro:

./cpu_info 
Packages:
	0: Apple M5 Pro
Microarchitectures:
	5x Sotra Super
	10x Sotra Performance
Cores:
	0: 1 processor (0), Apple Sotra Super
	1: 1 processor (1), Apple Sotra Super
	2: 1 processor (2), Apple Sotra Super
	3: 1 processor (3), Apple Sotra Super
	4: 1 processor (4), Apple Sotra Super
	5: 1 processor (5), Apple Sotra Performance
	6: 1 processor (6), Apple Sotra Performance
	7: 1 processor (7), Apple Sotra Performance
	8: 1 processor (8), Apple Sotra Performance
	9: 1 processor (9), Apple Sotra Performance
	10: 1 processor (10), Apple Sotra Performance
	11: 1 processor (11), Apple Sotra Performance
	12: 1 processor (12), Apple Sotra Performance
	13: 1 processor (13), Apple Sotra Performance
	14: 1 processor (14), Apple Sotra Performance
Clusters:
	0: 5 processors (0-4),	0: 5 cores (0-4), Apple Sotra Super
	1: 10 processors (5-14),	1: 10 cores (5-14), Apple Sotra Performance

Resolves #423