Phase 122: Refactor luaS_* functions to TString static methods #126

Job	Run time
Code Quality Checks	1m 7s
Performance Regression Check	1m 29s
Build & Test (gcc-13, Release)	43s
Build & Test (gcc-13, Debug)	52s
Build & Test (clang-15, Release)	37s
Build & Test (clang-15, Debug)	34s
Sanitizer Tests (ASAN + UBSAN)	30s
Build Summary	4s
	5m 56s

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